Colorimetry: Any technique by which an unknown color is evaluated in terms of standard colors. The technique may be visual, photoelectric, or indirect by means of spectrophotometry. It is used in chemistry and physics. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Chemistry, Analytic: The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (Grant & Hackh's Chemical Dictionary, 5th ed)Angioscopy: Endoscopic examination, therapy or surgery performed on the interior of blood vessels.Thiobarbiturates: Compounds in which one or more of the ketone groups on the pyrimidine ring of barbituric acid are replaced by thione groups.Color: The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.Tetrazolium Salts: Quaternary salts derived from tetrazoles. They are used in tests to distinguish between reducing sugars and simple aldehydes, for detection of dehydrogenase in tissues, cells, and bacteria, for determination of corticosteroids, and in color photography. (From Mall's Dictionary of Chemistry, 5th ed, p455)Prosthesis Coloring: Coloring, shading, or tinting of prosthetic components, devices, and materials.Disposable Equipment: Apparatus, devices, or supplies intended for one-time or temporary use.Spectrophotometry: The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.Tissue Survival: The span of viability of a tissue or an organ.Desoximetasone: A topical anti-inflammatory glucocorticoid used in DERMATOSES, skin allergies, PSORIASIS, etc.Skin Irritancy Tests: Tests or bioassays that measure the skin sensitization potential of various chemicals.Pressure: A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Motion Pictures as Topic: The art, technique, or business of producing motion pictures for entertainment, propaganda, or instruction.Science: The study of natural phenomena by observation, measurement, and experimentation.ArtGift Giving: The bestowing of tangible or intangible benefits, voluntarily and usually without expectation of anything in return. However, gift giving may be motivated by feelings of ALTRUISM or gratitude, by a sense of obligation, or by the hope of receiving something in return.Organizers, Embryonic: Cells in certain regions of an embryo that self-regulate embryonic development. These organizers have been found in dorsal and ventral poles of GASTRULA embryos, including Spemann organizer in amphibians, and Hensen node in chicken and mouse. These organizer cells communicate with each other via a network of secreted signaling proteins, such as BONE MORPHOGENETIC PROTEINS and their antagonists (chordin and noggin).Optical Rotatory Dispersion: The method of measuring the dispersion of an optically active molecule to determine the relative magnitude of right- or left-handed components and sometimes structural features of the molecule.Photometry: Measurement of the various properties of light.Color Perception Tests: Type of vision test used to determine COLOR VISION DEFECTS.Color Perception: Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.Lens, Crystalline: A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION.Food Coloring Agents: Natural or synthetic dyes used as coloring agents in processed foods.Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Blood Flow Velocity: A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.Fluorescence Polarization: Measurement of the polarization of fluorescent light from solutions or microscopic specimens. It is used to provide information concerning molecular size, shape, and conformation, molecular anisotropy, electronic energy transfer, molecular interaction, including dye and coenzyme binding, and the antigen-antibody reaction.Pulse: The rhythmical expansion and contraction of an ARTERY produced by waves of pressure caused by the ejection of BLOOD from the left ventricle of the HEART as it contracts.Cell Polarity: Orientation of intracellular structures especially with respect to the apical and basolateral domains of the plasma membrane. Polarized cells must direct proteins from the Golgi apparatus to the appropriate domain since tight junctions prevent proteins from diffusing between the two domains.Beer: An alcoholic beverage usually made from malted cereal grain (as barley), flavored with hops, and brewed by slow fermentation.Copper: A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.Consumer Satisfaction: Customer satisfaction or dissatisfaction with a benefit or service received.United States Department of Agriculture: A cabinet department in the Executive Branch of the United States Government concerned with improving and maintaining farm income and developing and expanding markets for agricultural products. Through inspection and grading services it safeguards and insures standards of quality in food supply and production.Blogging: Using an INTERNET based personal journal which may consist of reflections, comments, and often hyperlinks.Superstitions: A belief or practice which lacks adequate basis for proof; an embodiment of fear of the unknown, magic, and ignorance.Love: Affection; in psychiatry commonly refers to pleasure, particularly as it applies to gratifying experiences between individuals.Famous PersonsCoffee: A beverage made from ground COFFEA beans (SEEDS) infused in hot water. It generally contains CAFFEINE and THEOPHYLLINE unless it is decaffeinated.Quality Control: A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)Coffea: A plant genus of the family RUBIACEAE. It is best known for the COFFEE beverage prepared from the beans (SEEDS).Quality of Life: A generic concept reflecting concern with the modification and enhancement of life attributes, e.g., physical, political, moral and social environment; the overall condition of a human life.BooksScarlet Fever: Infection with group A streptococci that is characterized by tonsillitis and pharyngitis. An erythematous rash is commonly present.Maps as Topic: Representations, normally to scale and on a flat medium, of a selection of material or abstract features on the surface of the earth, the heavens, or celestial bodies.Phencyclidine: A hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. Phencyclidine is similar to KETAMINE in structure and in many of its effects. Like ketamine, it can produce a dissociative state. It exerts its pharmacological action through inhibition of NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE). As a drug of abuse, it is known as PCP and Angel Dust.Pierre Robin Syndrome: Congenital malformation characterized by MICROGNATHIA or RETROGNATHIA; GLOSSOPTOSIS and CLEFT PALATE. The mandibular abnormalities often result in difficulties in sucking and swallowing. The syndrome may be isolated or associated with other syndromes (e.g., ANDERSEN SYNDROME; CAMPOMELIC DYSPLASIA). Developmental mis-expression of SOX9 TRANSCRIPTION FACTOR gene on chromosome 17q and its surrounding region is associated with the syndrome.Wolves: Any of several large carnivorous mammals of the family CANIDAE that usually hunt in packs.Motivational Interviewing: It is a client-centered, directive method for eliciting intrinsic motivation to change using open-ended questions, reflective listening, and decisional balancing. This nonjudgmental, nonconfrontational interviewing style is designed to minimize a patient's resistance to change by creating an interaction that supports open discussion of risky or problem behavior.Medical Missions, Official: Travel by a group of physicians for the purpose of making a special study or undertaking a special project of short-term duration.GuidebooksOptometry: The professional practice of primary eye and vision care that includes the measurement of visual refractive power and the correction of visual defects with lenses or glasses.SingaporeOrthoptics: The study and treatment of defects in binocular vision resulting from defects in the optic musculature or of faulty visual habits. It involves a technique of eye exercises designed to correct the visual axes of eyes not properly coordinated for binocular vision.Asthenopia: Term generally used to describe complaints related to refractive error, ocular muscle imbalance, including pain or aching around the eyes, burning and itchiness of the eyelids, ocular fatigue, and headaches.Hydrogen Cyanide: Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials.Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Electron Transport Complex IV: A multisubunit enzyme complex containing CYTOCHROME A GROUP; CYTOCHROME A3; two copper atoms; and 13 different protein subunits. It is the terminal oxidase complex of the RESPIRATORY CHAIN and collects electrons that are transferred from the reduced CYTOCHROME C GROUP and donates them to molecular OXYGEN, which is then reduced to water. The redox reaction is simultaneously coupled to the transport of PROTONS across the inner mitochondrial membrane.Oxidoreductases Acting on CH-NH2 Group Donors: Enzymes catalyzing the dehydrogenation of or oxidation of compounds containing primary amines.Technical ReportMathematics: The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Perceptual Closure: The tendency to perceive an incomplete pattern or object as complete or whole. This includes the Gestalt Law of Closure.Cataloging: Activities performed in the preparation of bibliographic records for CATALOGS. It is carried out according to a set of rules and contains information enabling the user to know what is available and where items can be found.Acari: A large, subclass of arachnids comprising the MITES and TICKS, including parasites of plants, animals, and humans, as well as several important disease vectors.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.Plastic Embedding: The infiltrating of histological specimens with plastics, including acrylic resins, epoxy resins and polyethylene glycol, for support of the tissues in preparation for sectioning with a microtome.Dog Diseases: Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.Mobile Applications: Computer programs or software installed on mobile electronic devices which support a wide range of functions and uses which include television, telephone, video, music, word processing, and Internet service.Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.19, symbol Pb. (Dorland, 28th)Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.Metal Nanoparticles: Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.Biosensing Techniques: Any of a variety of procedures which use biomolecular probes to measure the presence or concentration of biological molecules, biological structures, microorganisms, etc., by translating a biochemical interaction at the probe surface into a quantifiable physical signal.Optical Devices: Products or parts of products used to detect, manipulate, or analyze light, such as LENSES, refractors, mirrors, filters, prisms, and OPTICAL FIBERS.Color Vision Defects: Defects of color vision are mainly hereditary traits but can be secondary to acquired or developmental abnormalities in the CONES (RETINA). Severity of hereditary defects of color vision depends on the degree of mutation of the ROD OPSINS genes (on X CHROMOSOME and CHROMOSOME 3) that code the photopigments for red, green and blue.Lighting: The illumination of an environment and the arrangement of lights to achieve an effect or optimal visibility. Its application is in domestic or in public settings and in medical and non-medical environments.Luminescence: Emission of LIGHT when ELECTRONS return to the electronic ground state from an excited state and lose the energy as PHOTONS. It is sometimes called cool light in contrast to INCANDESCENCE. LUMINESCENT MEASUREMENTS take advantage of this type of light emitted from LUMINESCENT AGENTS.Nerium: A plant genus of the family APOCYNACEAE. It is a very poisonous plant that contains cardioactive agents.Electromagnetic Radiation: Waves of oscillating electric and MAGNETIC FIELDS which move at right angles to each other and outward from the source.Electromagnetic Fields: Fields representing the joint interplay of electric and magnetic forces.Radiation: Emission or propagation of acoustic waves (SOUND), ELECTROMAGNETIC ENERGY waves (such as LIGHT; RADIO WAVES; GAMMA RAYS; or X-RAYS), or a stream of subatomic particles (such as ELECTRONS; NEUTRONS; PROTONS; or ALPHA PARTICLES).Radio Waves: Electromagnetic waves with frequencies between about 3 kilohertz (very low frequency - VLF) and 300,000 megahertz (extremely high frequency - EHF). They are used in television and radio broadcasting, land and satellite communications systems, radionavigation, radiolocation, and DIATHERMY. The highest frequency radio waves are MICROWAVES.Cellular Phone: Analog or digital communications device in which the user has a wireless connection from a telephone to a nearby transmitter. It is termed cellular because the service area is divided into multiple "cells." As the user moves from one cell area to another, the call is transferred to the local transmitter.PrintingMemory: Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.Memory Disorders: Disturbances in registering an impression, in the retention of an acquired impression, or in the recall of an impression. Memory impairments are associated with DEMENTIA; CRANIOCEREBRAL TRAUMA; ENCEPHALITIS; ALCOHOLISM (see also ALCOHOL AMNESTIC DISORDER); SCHIZOPHRENIA; and other conditions.Electronic Prescribing: The use of COMPUTER COMMUNICATION NETWORKS to store and transmit medical PRESCRIPTIONS.Memory, Short-Term: Remembrance of information for a few seconds to hours.Radiation Equipment and Supplies: Instruments and apparatus for radiation applications and their components and associated expendables.Endoscopes: Instruments for the visual examination of interior structures of the body. There are rigid endoscopes and flexible fiberoptic endoscopes for various types of viewing in ENDOSCOPY.Colonoscopes: Specially designed endoscopes for visualizing the interior surface of the colon.Tomography, Optical Coherence: An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.Environmental Medicine: Medical specialty concerned with environmental factors that may impinge upon human disease, and development of methods for the detection, prevention, and control of environmentally related disease.Chemical Processes: The reactions and interactions of atoms and molecules, the changes in their structure and composition, and associated energy changes.Electronics: The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Gas PoisoningPectobacterium carotovorum: A species of gram-negative, facultatively anaerobic, rod-shaped bacteria that causes rotting, particularly of storage tissues, of a wide variety of plants and causes a vascular disease in CARROTS; and POTATO plants.Tin Compounds: Inorganic compounds that contain tin as an integral part of the molecule.Unedited FootageOleandomycin: Antibiotic macrolide produced by Streptomyces antibioticus.Environment, Controlled: A state in which the environs of hospitals, laboratories, domestic and animal housing, work places, spacecraft, and other surroundings are under technological control with regard to air conditioning, heating, lighting, humidity, ventilation, and other ambient features. The concept includes control of atmospheric composition. (From Jane's Aerospace Dictionary, 3d ed)Fraud: Exploitation through misrepresentation of the facts or concealment of the purposes of the exploiter.Drug Costs: The amount that a health care institution or organization pays for its drugs. It is one component of the final price that is charged to the consumer (FEES, PHARMACEUTICAL or PRESCRIPTION FEES).Counterfeit Drugs: Drugs manufactured and sold with the intent to misrepresent its origin, authenticity, chemical composition, and or efficacy. Counterfeit drugs may contain inappropriate quantities of ingredients not listed on the label or package. In order to further deceive the consumer, the packaging, container, or labeling, may be inaccurate, incorrect, or fake.Meat: The edible portions of any animal used for food including domestic mammals (the major ones being cattle, swine, and sheep) along with poultry, fish, shellfish, and game.Commerce: The interchange of goods or commodities, especially on a large scale, between different countries or between populations within the same country. It includes trade (the buying, selling, or exchanging of commodities, whether wholesale or retail) and business (the purchase and sale of goods to make a profit). (From Random House Unabridged Dictionary, 2d ed, p411, p2005 & p283)

Chemical and immunochemical measurement of total iron-binding capacity compared. (1/1676)

Radiometric, colorimetric, and two immunochemical methods for measuring total iron-binding capacity are compared. We evaluated the procedures on the basis of precision, applicability to a pediatric population, and accuracy as assessed by analytical recovery of purified transferrin. The immunoephelometric assay for transferrin provides significant advantages over the other methods examined.  (+info)

Improved antibody detection by the use of range expansion and longer filter wavelength in a low ionic strength-protamine sulphate Auto-Analyzer system. (2/1676)

Range expansion, achieved by insertion of a variable resistance between the colorimeter and the recorder together with the use of 550 nm colorimeter filters, has resulted in markedly improved sensitivity for antibody detection, and improved sample identification, in a low ionic strength-protamine sulphate (LISPS) system. Range expansion also permits a lower concentration of red cells to be used, thus economizing on fully typed cells. Glycerol stored frozen cells were found to be only slightly less sensitive than fresh cells in this system.  (+info)

Quantitative study of the variability of hepatic iron concentrations. (3/1676)

BACKGROUND: The hepatic iron concentration (HIC) is widely used in clinical practice and in research; however, data on the variability of HIC among biopsy sites are limited. One aim of the present study was to determine the variability of HIC within both healthy and cirrhotic livers. METHODS: Using colorimetric methods, we determined HIC in multiple large (microtome) and small (biopsy-sized) paraffin-embedded samples in 11 resected livers with end-stage cirrhosis. HIC was also measured in multiple fresh samples taken within 5 mm of each other ("local" samples) and taken at sites 3-5 cm apart ("remote" samples) from six livers with end-stage cirrhosis and two healthy autopsy livers. RESULTS: The within-organ SD of HIC was 13-1553 microg/g (CV, 3.6-55%) for microtome samples and 60-2851 microg/g (CV, 15-73%) for biopsy-sized samples. High variability of HIC was associated with mild to moderate iron overload, because the HIC SD increased with increasing mean HIC (P <0.002). Livers with mean HIC >1000 microg/g exhibited significant biological variability in HIC between sites separated by 3-5 cm (remote sites; P <0.05). The SD was larger for biopsy-sized samples than for microtome samples (P = 0.02). CONCLUSION: Ideally, multiple hepatic sites would be sampled to obtain a representative mean HIC.  (+info)

Nonenzymatic reduction of benzo(a)pyrene diol-epoxides to trihydroxypentahydrobenzo(a)pyrenes by reduced nicotinamide adenine dinucleotide phosphate. (4/1676)

The diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydrobenzo(a)pyrene is a potent mutagen and possibly the ultimate carcinogenic form of benzo(a)pyrene. A (7/8,9)-trihydroxy-7,8,9,10,10-pentahydrobenzo(a)pyrene is formed from the diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydroxybenzo(a)pyrene by reduction with reduced nicotinamide adenine dinucleotide phosphate. Its formation is linear with reduced nicotinamide adenine dinucleotide phosphate concentration and does not require the presence of enzyme. A (7,9/8)-trihydroxy-7,8,9,10,10-pentahydrobenzo(a)pyrene is similarly formed from the diol-epoxide r-7,t-8-dihydroxy-c-9,10-oxy-7,8,9,10-tetrahydrobenzo(a)pyrene by reduction with reduced nicotinamide adenine dinucleotide phosphate. The structures of the trihydroxypentahydrobenzo(a)pyrenes were established by their ultraviolet absorption and mass spectra and their reaction with potassium triacetylosmate.  (+info)

Stable thiobarbituric acid chromophore with dimethyl sulphoxide. Application to sialic acid assay in analytical de-O-acetylation. (5/1676)

With dimethyl sulphoxide instead of butanol in the thiobarbituric acid assay for sialic acid, a non-fading chromophore with lambdamax. = 549 nm was produced in a homogeneous solution, allowing dilution of the test mixture in case of high colour yield. This test adapted well to studies on alkaline de-O-acetylation. Bovine and rat submaxillary mucins, and rabbit Tamm-Horsfall urinary sialoproteins contain O-acetyl isomers of neuramine acid that are resistant to the thiobarbituric acid assay. Alkaline de-O-acetylation converted resistant O-acetylneuraminic acid into thiobarbituric acid-reactive sialic acid, and such conversion paralleled de-O-acetylation as measured by the ferric hydroxamate method. The colour increment was similar when the alkaline treatment of bovine submaxillary mucin either preceded or followed the acid hydrolysis. Only alkaline preptreatment was effective with rat submaxillary mucin. By selecting optimal conditions for alkaline de-O-acetylation, O-acetyl isomers can be accurately assessed by the thiobarbituric acid assay.  (+info)

A colorimetric technique for detecting trichothecenes and assessing relative potencies. (6/1676)

We tested a novel colorimetric toxicity test, based on inhibition of beta-galactosidase activity in the yeast Kluyveromyces marxianus, for sensitivity to a range of mycotoxins. A variety of trichothecene mycotoxins could be detected. The order of toxicity established with this bioassay was verrucarin A > roridin A > T-2 toxin > diacetoxyscirpenol > HT-2 toxin > acetyl T-2 toxin > neosolaniol > fusarenon X > T-2 triol > scirpentriol > nivalenol > deoxynivalenol > T-2 tetraol. The sensitivity of detection was high, with the most potent trichothecene tested, verrucarin A, having a 50% effective concentration (concentration of toxin causing 50% inhibition) of 2 ng/ml. Other mycotoxins (cyclopiazonic acid, fumonisin B1, ochratoxin A, patulin, sterigmatocystin, tenuazonic acid, and zearalenone) could not be detected at up to 10 micrograms/ml, nor could aflatoxins B1 and M1 be detected at concentrations up to 25 micrograms/ml. This test should be useful for trichothecene detection and for studies of relevant interactions-both between trichothecenes themselves and between trichothecenes and other food constituents.  (+info)

The association between occupational lead exposure and serum cholesterol and lipoprotein levels. (7/1676)

OBJECTIVES: This study sought to clarify the possible associations between blood lead level and serum cholesterol and lipoprotein levels in subjects occupationally exposed to lead. METHODS: Levels of blood lead, serum total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein cholesterol, and triglycerides in 56 male industrial employees who were exposed to lead were compared with those in 87 unexposed employees. RESULTS: Mean blood lead levels were 42.3 (+/- 14.9) micrograms/dL in the exposed group and 2.7 (+/- 3.6) micrograms/dL in the nonexposed group. The exposed subjects had higher mean levels of total cholesterol and HDL cholesterol. CONCLUSIONS: Blood lead levels are positively associated with total and HDL cholesterol.  (+info)

The MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay is a fast and reliable method for colorimetric determination of fungal cell densities. (8/1676)

The entomopathogenic fungus Neozygites parvispora (Entomophthorales: Zygomycetes) grows in vitro as irregularly rod-shaped hyphal bodies in a complex medium. In order to simplify the medium composition and determine growth-promoting compounds for the cultivation of this fungus, we were looking for a rapid and quantitative method to estimate the number of living cells in small volumes of liquid culture. A colorimetric method for the determination of cell densities using MTT [3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide] proved to be more accurate and timesaving than conventional hemocytometer counting.  (+info)

*Colorimetry

... is "the science and technology used to quantify and describe physically the human color perception." It is similar ... ISBN 0-240-80740-5. Schanda, János D. (1997). "Colorimetry" (PDF). In Casimer DeCusatis. Handbook of Applied Photometry. OSA/ ... MacEvoy, Bruce (2008-05-08). "Overview of the development and applications of colorimetry". Handprint.com. Retrieved 2008-07-17 ... Colorimetry: Understanding the CIE System. Wiley Interscience. doi:10.1002/9780470175637.ch6. ISBN 978-0-470-04904-4. Andreas ...

*Colorimetry (chemical method)

In physical and analytical chemistry, colorimetry or colourimetry is a technique "used to determine the concentration of ...

*Illuminant D65

Schanda, János (2007). "3. CIE Colorimetry". Colorimetry: Understanding the CIE System. Wiley. pp. 43, 44. doi:10.1002/ ... Committee E-1.3.1 (Colorimetry) (June 19-28, 1967). Proceedings of the 16th session. Washington, D.C. Paris: CIE. CIE. Relative ... ISO 10526:1999/CIE S005/E-1998, CIE Standard Illuminants for Colorimetry The CIE introduced three standard illuminants in 1931 ... CIE Technical Report (1999). A Method for Assessing the Quality of Daylight Simulators for Colorimetry. Paris: Bureau central ...

*Grassmann's laws (color science)

Brill, Michael H.; Robertson, Alan R. (2007). "Open Problems on the Validity of Grassmann's Laws". Colorimetry. John Wiley & ...

*CIE 1931 color space

Colorimetry. Wiley Interscience. pp. 9-24. doi:10.1002/9780470175637.ch2. ISBN 978-0-470-04904-4. (originally published by the ... It includes CIE standard tristimulus colorimetry and transformations to a number of non-linear color appearance models (CIE Lab ... "Golden Jubilee of Colour in the CIE-The Historical and Experimental Background to the 1931 CIE System of Colorimetry". In ...

*Dominant wavelength

Colorfulness White point CIE, 15 (2004). "Chapter 5.1". Colorimetry. Vienna, P.O. Box 169: Central Bureau of the CIE. ISBN 978 ...

*Lab color space

Adams, E.Q. (1942). "X-Z planes in the 1931 I.C.I. system of colorimetry". JOSA. 32 (3): 168-173. doi:10.1364/JOSA.32.000168. ... ISBN 0-13-336165-9. János Schanda (2007). Colorimetry. Wiley-Interscience. p. 61. ISBN 978-0-470-04904-4. Hunter Labs (1996). " ...

*Tristimulus colorimeter

Colorimetry: Understanding the CIE System. Wiley Interscience. doi:10.1002/9780470175637.ch6. ISBN 978-0-470-04904-4. Zharinov ... Ohta, Noboru; Robertson, Alan R. (2005). "Measurement and Calculation of Colorimetric Values". Colorimetry. John Wiley & Sons, ... Hunter, Richard Sewall (September 1942). "Photoelectric tristimulus colorimetry with three filters". JOSA. 32 (9): 509-538. doi ...

*Color rendering capacity

Commission Internationale de l'Eclairage (2004). Colorimetry, CIE. Xu, H (2008). "Correspondence: Colour rendering capacity", ...

*Sulfanilic acid

"Colorimetry and Spectrophotometry". Vogel's Textbook of Quantitative Chemical Analysis, 5th Edition. Longman. p. 702. ISBN 0- ... the concentration of nitrate or nitrite ions were deduced from the color intensity of the resulting red solution by colorimetry ...

*N-(1-Naphthyl)ethylenediamine

G. H. Jerffery; J. Bassett; J. Mendham; R. C. Denney (1989). "Colorimetry and Spectrophotometry". Vogel's Textbook of ... dihydrochloride is widely used in the quantitative analysis of nitrate and nitrite in water samples by colorimetry. It readily ...

*Rg chromaticity

Colorimetry Fundamentals and Applications. Wiley - IS&T Series. p. 65. ISBN 978-0-470-09472-3. R. W. G. Hunt (2004). "The ... Selected Papers on Colorimetry Fundamentals. SPIE - The International Society for Optical Engineering. p. 343. ISBN 0-8194-1296 ... ISBN 978-0-387-40595-7. W. T. Wintringham (1951). "Color Television and Colorimetry". In D L. MacAdam. ...

*Shadow mask

"Colorimetry standards", Broadcast Engineering. Len Buckwalter, "1970 Television: The Picture Is Brighter Than Ever", "Popular ...

*Joseph Williams Lovibond

ISBN 978-0-307-43083-0. Fawcett, G S (1944). "Sixty years of colorimetry". Proceedings of the Physical Society. 56 (1): 8-21. ...

*Turbidimetry

Colorimetry Mary C. Haven; Gregory A. Tetrault; Jerald R. Schenken (1994). Laboratory Instrumentation. John Wiley and Sons. ...

*Whiteness

Color temperature Schanda, János (2007). "Chapter 3: CIE Colorimetry". Colorimetry: Understanding the CIE System. Wiley ... In colorimetry, whiteness is the degree to which a surface is white. An example of its use might be to quantitatively compare ...

*Colorimeter (chemistry)

A colorimeter is a device used in colorimetry. In scientific fields the word generally refers to the device that measures the ... 4] Orion Colorimetry Theory. The Technical Edge. [5] Spectronic 20 Spectrophotometer Lovibond Colorimeter. ... 3] "Colorimetry" Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc. (2011) 17 November 2011 ... Nuffield Advanced Chemistry (2003) Colorimetry [1] Anzalone GC, Glover AG, Pearce JM. Open-Source Colorimeter. Sensors (2013); ...

*Von Kries coefficient law

Schanda, Janos (2007). Colorimetry: Understanding the CIE System. Canada: John Wiley & Sons, Inc. Harris, Douglas (1990). ...

*Level of measurement

... this is known as colorimetry. Hue is an interval level variable. Cohen's kappa Coherence (units of measurement) Hume's ...

*CIE 1964 color space

Colorimetry: Understanding the CIE System. Wiley Interscience. p. 81. Ladd, J.H.; Pinney, J.E. (September 1955). "Empirical ...

*CIECAM02

Schanda, János (2007). "The Future of Colorimetry in the CIE: Color Appearance". Colorimetry: Understanding the CIE System. ... In colorimetry, CIECAM02 is the color appearance model published in 2002 by the International Commission on Illumination (CIE) ...

*CIELUV

In colorimetry, the CIE 1976 (L*, u*, v*) color space, commonly known by its abbreviation CIELUV, is a color space adopted by ... Colorimetry, second edition: CIE publication 15.2. Vienna: Bureau Central CIE, 1986. Poynton, Charles (2003). Digital Video and ... Colorimetry: Understanding the CIE System. Wiley Interscience. pp. 61-64. ISBN 978-0-470-04904-4. As 24/116 is not a simple ...

*Colorfulness

Schanda, János (2007). Colorimetry: Understanding the CIE System. Wiley Interscience. ISBN 978-0-470-04904-4. Archived from the ...

*Jules Duboscq

Colorimetry (chemical method) Herbert, Steven (2008). Encyclopedia of Nineteenth-century Photography. New York: Routledge. pp. ...

*CIE 1960 color space

OSA Committee on Colorimetry (November 1944). "Quantitative data and methods for colorimetry". JOSA. 34 (11): 633-688. ( ... The Colorimetry committee of the CIE considered MacAdam's proposal at its 14th Session in Brussels for use in situations where ...
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If youre interested in forensic toxicology and are trying to determine the presence of salicylate by using a visual colorimetry, then look no further. This indepth and compelling video takes you into world of salicylate determination. Salicylate determination with visual colorimetry, Part I Using iron(III) nitrate to determine salicylate concentration in standardized salicylate solutions and urine. You can actually use any iron(III) salt, such as ferric chloride, ferric ammonium sulfate, and so on. Concentration is not critical
TY - JOUR. T1 - Colorimetric sensor for the determination of low-molecular-weight heparin. AU - Gavrilenko, Mikhail A.. AU - Gavrilenko, Nataliya A.. PY - 2017/7/1. Y1 - 2017/7/1. N2 - A colorimetric sensor was proposed for the visual and solid phase spectrophotometric detection of low-molecular-weight heparin in concentration ranges of 40-120 and 5-40 mg dm-3, respectively, with a detection limit of 2.0 mg dm-3 using a color destruction reaction of toluidine blue immobilized in an optically transparent polymethacrylate matrix.. AB - A colorimetric sensor was proposed for the visual and solid phase spectrophotometric detection of low-molecular-weight heparin in concentration ranges of 40-120 and 5-40 mg dm-3, respectively, with a detection limit of 2.0 mg dm-3 using a color destruction reaction of toluidine blue immobilized in an optically transparent polymethacrylate matrix.. UR - http://www.scopus.com/inward/record.url?scp=85026395908&partnerID=8YFLogxK. UR - ...
If the child continues to use the overlay through choice or the teacher/parent reports an improvement then it has most likely been beneficial. The overlay is usually given for a trial period of approx. 6 weeks. Spectacles with Precision Tinted Lenses can then be prescribed following an Intuitive Colorimetry assessment. These are more convenient/versatile as they can be used with white boards and computer screens. The Precision Tinted Lens is more accurate than the overlay as many more colour combinations are used and the tint will vary from person to person. The colour of the lens may differ from that of the initial overlay used ...
Colorimetry Research is committed to innovation in Light and Color Measuring Instruments using exceptional engineering, product simplicity and total customer satisfaction
Colorimetry Research is committed to innovation in Light and Color Measuring Instruments using exceptional engineering, product simplicity and total customer satisfaction
View Notes - lab 6 report[1] from BSC 2011 at University of Florida. Determining the mass percent of copper in a penny minted between 1982-2005 using colorimetry and Beers Law Introduction The
I have gotten really busy between blogging, my family, and now partnering with Laura @ Colorimetry/Prism Book Tours for blog tours. This means that Friday Favorites will not be a consistent post. I will post when I really have something that I love that I want to share and it may be completely planned or sporadic. It isnt something I want to give up because I love sharing what I really love with you, so this is my compromise. When it does post, it will still be on Fridays ...
TY - JOUR. T1 - Colorimetric determination of lipase and esterase in dogs serum.. AU - SELIGMAN, A. M.. AU - NACHLAS, M. M.. AU - MOLLOMO, M. C.. PY - 1949/11. Y1 - 1949/11. UR - http://www.scopus.com/inward/record.url?scp=76549207946&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=76549207946&partnerID=8YFLogxK. M3 - Article. C2 - 15393476. AN - SCOPUS:76549207946. VL - 159. SP - 337. EP - 342. JO - American Journal of Physiology. JF - American Journal of Physiology. SN - 0363-6135. IS - 2. ER - ...
Introduction. \\wss1caterham\nievettha.r$\My Documents\Applied Science\2.jpg Colorimeter Background Information - Colorimeter A colorimeter is an apparatus for measuring heat quantities. A colorimeter is calibrated using known concentrations of a coloured solution. The part of the light is absorbed when light is passed through a medium and as a result, there is a decrease in how much of the light reflected by the medium. A colorimeter measures the change that is occurred so that people that are using the colorimeter can analyse the concentration of a particular substance in that medium. The more concentrated the solution is, the more light that will be absorbed. Colorimeter has three main parts which are the light source, a cuvette and a photo resistor. The cuvette holds the solution and the colorimeter is equipped with coloured filters to produce coloured light. The light that is transmitted by the solution in the cuvette is detected by a photo cell and it produces signal such as the ...
In addition to enough contact time, adequate tidal volume is necessary to create a recognizable color change in colorimetric ETCO2 detectors. A device with a larger dead space volume may require larger tidal volumes to show a color change than one with a smaller dead space. Small volumes may get washed out in the dead space of the device, producing a false negative result.1,11 The Neo-StatCO2 is the first colorimetric detector labeled for infants ,1 kg. The product literature from the manufacturer on the resistance of this new detector is limited to 5 L/min. We compared the Neo-StatCO2 with other colorimetric ETCO2 devices in the flow range in which they are most widely utilized, 6-10 L/min. To our knowledge, there are no prior publications validating the manufacturers specifications (Fig. 1). The dead space has been decreased and the resistance to flow has increased in the Neo-StatCO2 compared with the Mini StatCO2. There are no studies demonstrating that these design changes have improved the ...
Operator-independent assessment of skin blanching is important in the development and evaluation of topically applied steroids. Spectroscopic instruments based on hand-held probes, however, include elements of operator dependence such as difference in applied pressure and probe misalignment, while laser Doppler-based methods are better suited for demonstration of skin vasodilatation than for vasoconstriction.. To demonstrate the potential of the emerging technology of Tissue Viability Imaging (TiVi) in the objective and operator-independent assessment of skin blanching.. The WheelsBridge TiVi600 Tissue Viability Imager was used for quantification of human skin blanching with the Minolta chromameter CR 200 as an independent colorimeter reference method. Desoximetasone gel 0.05% was applied topically on the volar side of the forearm under occlusion for 6 h in four healthy adults. In a separate study, the induction of blanching in the occlusion phase was mapped using a transparent occlusion ...
An automated colorimetric method for determining lipase activity in canine sera was evaluated for precision, linearity and correlation to existing assay methods. The colorimetric method was a commercial reagent that used a series of enzymatic reactions based on the hydrolysis of 1,2 diglyceride by pancreatic lipase. Within-run and between-run coefficients of variation were 7 y) dogs using this assay. It was concluded that the automated colorimetric assay was a reliable indicator of canine serum Show moreAn automated colorimetric method for determining lipase activity in canine sera was evaluated for precision, linearity and correlation to existing assay methods. The colorimetric method was a commercial reagent that used a series of enzymatic reactions based on the hydrolysis of 1,2 diglyceride by pancreatic lipase. Within-run and between-run coefficients of variation were 7 y) dogs using this assay. It was concluded that the automated colorimetric assay was a reliable indicator of canine serum ...
Proposed draft working document towards development of draft new Recommendation ITU-R BT.[COLORIMETRY 1931-2006] - Use colorimetry CIE 1931 and CIE 2006 in television studies and technologies ...
Proposed draft working document towards development of draft new Recommendation ITU-R BT.[COLORIMETRY 1931-2006] - Use colorimetry CIE 1931 and CIE 2006 in television studies and technologies ...
Cover Commentary: Perfect! Sybella is dark and mysterious and she wields knives with skill. She infiltrates the bad guys, so she doesnt have weapons hiding all over her person, like Ismae did. Sybella is ready for a pat-down at any moment, and yet deadlier than any weapon-loaded handmaiden of death. Shes in a dark dungeon-y passageway... which is exactly right for the story and for her soul. Remember how Grave Mercys cover says "Why be the sheep when you can be the wolf?" This cover says "Vengeance is Divine." *snort* Also perfect ...
ul,,li,,a href="http://www.shelfari.com/books/26920242/The-Dawn-of-Angels-(Angel-Realms-Book-1)?widgetId=208209",The Dawn of Angels (Angel Realms, Book 1),/a, by Vivienne Malynn,...,/li,,li,,a href="http://www.shelfari.com/books/129956/The-League-of-the-Scarlet-Pimpernel?widgetId=208209",The League of the Scarlet Pimpernel,/a, by Baroness Emmuska Orczy,/li,,li,,a href="http://www.shelfari.com/books/21532407/Legend?widgetId=208209",Legend,/a, by Marie Lu,/li,,/ul ...
US scientists have developed and tested a prototype breath test to detect lung cancer. The results of the test is published in the international journal of respiratory medicine Thorax.. In tests, the colour testing device, which is about the size of a coin and is not expensive, had a 75 per cent success rate in detecting people with cancer.. It can also detect people with early stages of lung cancer.. However, in testing the device also showed false positives - it picked out people without lung cancer.. Using a technique called a "colorimetric sensor array", the test picks up the chemical fingerprint of the breath of people with lung cancer.. Lung cancer tumours, like other cancers, produce volatile organic compounds (VOCs) that are different to normal cells. And because the tumours are in the lungs, the breath is likely to contain signs of these abnormal compounds. This means the potential for a lung cancer "fingerprint" in the breath is a viable method for detection. ...
Hexavalent chrome is a toxic-heavy metal released during many industrial manufacturing and plating processes requiring continuous monitoring.. The Alert Colorimeter uses the differential absorbance colorimetry (DAC) methodology to prevent background sample colour and solids adversely affecting the analysis.. The working range is 0-1mg/l with a limit of detection of one part per billion.. The running costs are kept to a minimum by low reagent use, typically 1ml per analysis for each reagent, and minimal consumables.. Attendance for planned maintenance is usually carried out on an annual basis.. ...
BIOLABO, AST/TGO - ALT/TGP colorimetric Method, End point colorimetric method. Reagent for quantitative determination of Alanine amino transferase (ALT) and Aspartate amino transferase (AST) activities in human serum and plasma. Reading : End Point at 505 nm.
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The present invention provides an aptamer-based calorimetric sensor system for determining the presence and optionally the concentration of an analyte in a sample. Methods of utilizing the sensor syst
Zuschriften DOI: 10.1002/ange.200900071 Calcium Sensors Bioinspired Colorimetric Detection of Calcium(II) Ions in Serum Using Calsequestrin-Functionalized Gold Nanoparticles** Sunghyun Kim, Jeong Won Park, Dongkyu Kim, Daejin Kim, In-Hyun Lee, and Sangyong Jon* The calcium(II) ion is the most abundant cation in the body, and participates in various biological activities such as skeletal mineralization, blood coagulation, neurotransmission, excitation of skeletal and cardiac muscle, and stimulus-mediated hormone secretion.[1] Blood calcium levels range from 2.1 mm to 2.6 mm in healthy humans; this level is strictly maintained and varies by 3 % at most. Severe fluctuations in calcium levels are associated with many diseases. For instance, the common causes of hypercalcemia are primary hyperparathyroidism, malignant tumors, and hyperthyroidism.[2] Therefore, the accurate and fast estimation of blood calcium levels is of great importance. Several techniques are available to assess blood calcium ...
The main difference between colorimeter and spectrophotometer is that the colorimeter measures absorbance of specific colours, and a spectrometer measures
The presence of Escherichia coli (E. coli) in food and drinking water is a chronic problem worldwide. Protecting food against bacterial contamination and rapid diagnosis of infection require simple and rapid assays for detection of bacterial pathogens, including E. coli O157:H7. Here we report a rapid and novel colorimetric method for detecting E. coli O157:H7. This colorimetric method is based on the catalytic oxidation of the peroxidase substrate 3,3,5,5-tetramethylbenzidine by hydrogen peroxide using 4-mercaptophenylboronic acid-functioned [email protected] nanoparticles adsorbed on the surface of E. coli O157:H7. The assay showed excellent sensitivity both with the naked eye and based on absorbance measurements. The absorbance at 652 nm was proportional to the concentration of E. coli O157:H7 ranging from 7 to 6 × 10(6) cfu mL(-1) with a limit of detection of 7 cfu mL(-1). The total detection time was less than 40 min.
* found in: Colorimeter Solutions, Assorted chemistries for use with your Orion AQUAfast II colorimeter. Test kits chemistries are convenient to use..
Find Tristimulus Colorimeter related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Tristimulus Colorimeter information.
Device (1) for 3D optical measurement and for colorimetry, comprising an objective (12, 40, 41), characterized in that the device intervenes between a first mode for 3D optical measurement by means of the chromatic confocal measuring method and a second mode the color measurement is adjustable in that in the first mode by means of the objective (12, 40, 41) a broadband illumination beam (14) is focusable such that the light of one of its wavelengths has its focal point (19) in a first plane (15) in a measuring object surface (16), and focal points (20, 21) of the other wavelengths are above and / or below the first plane (15), and in the second mode, the same broadband illumination beam (14) by means of the objective (12, 40, 41) is focusable so that the focus points for all wavelengths almost overlap and they by a choice of the focal length of the lens outside the first plane at a distance (d) from the e lie on the first plane, whereby the illumination beam in the first plane forms a measuring
Colorimetry Skin color can Eriacta 100mg precisely measured using a colorimeter (e. These two biologic processes are osteomimicry, the ability of prostate cancer cells to mimic вbone-likeв properties, and the epithelialвmesenchymal transition (EMT), which coincides with the ability of prostate cancer cells to gain migratory, inva- Buy Tadalista in Utica, and metastatic potential (see Utiica sections). The type of treatment depends on the severity of the injury. J.
Methods The antitumor effect of C. crepidioides was evaluated in S-180-cell-bearing mice. Cell growth was assessed using a colorimetric assay. Nitrite and nitrate levels were measured by colorimetry. The expression levels of inducible NO synthase (iNOS) in murine RAW264.7 macrophages was assessed by reverse transcriptase-polymerase chain reaction. Activation of iNOS promoter was detected by reporter gene. Activation of nuclear factor-κB (NF-κB) was evaluated by electrophoretic mobility shift assay. The role of NF-κB signaling was analyzed using inhibitors of NF-κB and dominant-negative mutants, and Western blot analysis ...
Determining the concentration of a sixth copper(II) sulfate solution using the calibration curve and the equation of the slope of the best-fit line of the calibration curve ...
Color definition and data exchange continue to be dominant themes in both the US and international graphic arts standards activity. However, there is a growing understanding of the role that metrology and printing process definition play in helping define stable process conditions to which color characterization data can be related. Standards have already been published that define the requirements for color measurement and computation, scanner input characterization targets, four-color output characterization data sets, and graphic arts applications of densitometry. Work continues on standards relating to ink testing and ink color specifications. The numerical specifications of SWOP proof printing have been captured in ANSI standard CGATS.6-1995. Work has been completed, and Technical Report ANSI CGATS TR 001-1995 has been published, that relates the colorimetry of the printed sheet to the CMYK input for press proofing meeting SWOP and CGATS.6 specifications. Work is ongoing to provide similar ...
This paper introduces the principle and configuration of an auto urine analysis system. The system employs an ARM-LPC2214 as CPU and a color linear-CCD as sensor. A CPLD is used to produce pulses for the CCD and for other circuits in the system. The CPLD is programmed through Verilog HDL language. The sick is determined according to the color change of test strips. Principle of color test circuit and design of software for identifying color data are also described. The software uses the principle of CIE Colorimetry to identify the color. Experiments show that test speed is fast and the result is precise. This system is suitable for the situations in which a large number of samples are to be treated ...
Improvements in non-invasive detection methods for glucose and other constituents of interest in a sample have been developed. The apparatus and methods of the invention provide an analog of color perception of human vision, preferably in the near infrared region, replacing spectrophotometers and narrow band sources used in other non-invasive near infrared detection methods. A plurality of detector units are used, each covering a broad and overlapping region of the detected spectrum, paralleling color perception and colorimetry. The improvements are primarily concerned with improving the signal-to-background (or noise) ratio such that the data stream is improved. These improvements use congruent sampling, comparison of different data streams from different sample portions or filter sets, using an interrogation system with sufficient speed to allow testing of arterial blood, and using a filter with a spectral structure. In some circumstances, a neural net is used for analysis, allowing the system to
Redox colorimetric tests have been devised for the rapid analysis of the individual components of aqueous mixtures of peroxodisulfate, peroxomonosulfate and hydrogen peroxide; providing a convenient and selective method for the determination of these industrially relevant oxidants, which are known to inter-convert in solution ...
This work presents the development of bioassays and biosensors for the detection of insecticides widely used in the treatment of olive trees. The systems are based on the covalent immobilisation of acetylcholinesterase on magnetic microbeads using either colorimetry or amperometry as detection technique. The magnetic beads were immobilised on screen-printed electrodes or microtitration plates and tested using standard solutions and real samples. The developed devices showed good analytical performances with limits of detection much lower than the maximum residue limit tolerated by international regulations, as well as a good reproducibility and stability.
Ekroll, V. & Golz, J. (2003). Comparing the behaviour of machine vision algorithms and human observers: Commentary on Brainard, Kraft, and Long re. In: R. Mausfeld & D. Heyer (Eds.), Colour - Mind and the physical world. Oxford: Oxford University Press.. Faul, F. (2003). Adaptation and the ambiguity of response measures with respect to internal structure: Commentary on Webster. In: R. Mausfeld & D. Heyer (Eds.), Colour - Mind and the physical world. Oxford: Oxford University Press.. Golz, J. & MacLeod, D.I.A. (2003). Colorimetry for CRT displays. Journal of the Optical Society of America A, 20, 769-781.. MacLeod, D.I.A. & Golz, J. (2003). A computational analysis of colour constancy. In: R. Mausfeld & D. Heyer (Eds.), Colour - Mind and the physical world. Oxford: Oxford University Press.. Mausfeld, R. (2003). Competing representations and the mental capacity for conjoint perspectives. In: H. Hecht, B. Schwartz & M. Atherton (Eds.), Inside Pictures: An Interdisciplinary Approach to Picture ...
DSIs photolithography capability produces precision patterned thin film coatings both by wafer level processing and complex geometry processing. This process results in very small feature sizes accurately placed physically on the wafer or part. DSI is capable to doing both positive and negative resist processes. Our standard wafer diameters are 100mm, 150mm and 200mm. Applications include multispectral filters, hyperspectral filters, sensor band pass filters, colorimetry and many others ...
Other Course Information A. Objectives By the end of the course, the students will develop a strong research understanding and will have hands on experience of the following: 1. Principles of measurements, balances and pipetting, working of pH instrument, preparation of different media, buffers and indicators. 2. General cell culture techniques, maintain cell cultures, viability and cytotoxicity assays. 3. Microscopy, principles and applications. Preparation of slides using different fixatives and stains to observe and identify different organisms/cell organelles. 4. DNA extraction, quantification, and separation by agarose gel. Primer designing and PCR amplification of their own genomic DNA by using buccal swabs. 5. Basic principles and applications of colorimetry, spectrophotometry, and flowcytometry. 6. Immunological techniques like western blot and ELISA. 7. Protein estimation with Bradford and Lowry s methods. 8. Expression of foreign gene in bacterial host system, vector designing and ...
Textile testing, Formaldehyde, Determination of content, Chemical analysis and testing, Textiles, Colorimetry, Test equipment, Calibration, Standard solutions, Test specimens, Accuracy, Precision ...
ApoGSHTM Glutathione Colorimetric Detection Kit: Convenient & Sensitive Colorimetric Assay for analyzing either Total Glutathione or Reduced form of Glutathione from Tissues, Cells, Plasma & Erythrocytes. 100 Assays.
Water analysis instruments covering the full range - from pH, ISE, conductivity and dissolved oxygen meters, electrodes and solutions, to colorimetry, titration and on-line process monitors. Recognised worldwide for quality and accuracy, our products serve markets such as environmental, food and beverage, pharmaceutical, and general laboratory equipment.. ...
Ripper ...........:IMAGiNE IMDB Rating.......:7.7/10 Video Codec.......:XVID Release Date......:28/08/10 Audio Codec.......:AC3 Theatre Date......:13/08/10 Audio Bitrate.....:384 Runtime...........:1h 39mn Subtitles.........:English Language..........:ENGLISH Resolution........:704 x 304 IMDb URL..........:http://www.imdb.com/title/tt1320253/ DETAILS: Video Format : MPEG-4 Visual Format profile : Streaming [email protected] Format settings, BVOP : Yes Format settings, QPel : No Format settings, GMC : No warppoints Format settings, Matrix : Default Muxing mode : Packed bitstream Codec ID : XVID Codec ID/Hint : XviD Duration : 1h 39mn Bit rate : 1 577 Kbps Width : 704 pixels Height : 304 pixels Display aspect ratio : 2.35 Frame rate : 25.000 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.295 Stream size : 1.09 GiB (80%) Writing library : XviD 50 Audio Format : AC-3 Format/Info : Audio Coding 3 Codec ID : 2000 Duration : 1h 39mn Bit rate mode : Constant Bit rate ...
Atlantic Television provides Sony PDW-F800 and Sony HDW-F900R camera rentals in New York, Los Angeles and in every other major city in the USA to many of the worlds leading broadcasters, production companies and corporations.. The highly respected HDW-F900 camcorder has now been refined into the next-generation HDW-F900R, offering a variety of further enhanced functionalities. The HDW-F900R camcorder records images in accordance with the CIF (Common Image Format) standard, which specifies a sampling structure of 1920 x 1080 active pixels (horizontal x vertical). Plus, as well as recording at 24P, the HDW-F900R camcorder is switchable to record at 25P, 29.97P progressive scan, and also at 50 or 59.94 Hz interlaced scan.. The HDWF900R also provides a comprehensive range of features for creative shooting such as enhanced gamma features and colorimetry controls. Plus, the design of the HDW-F900R is highly compact and lightweight, giving users higher levels of mobility and comfort when ...
Jim has been working in the Water Chemistry Laboratory for more than 15 years. He runs most of our nutrient analysis on our Lachat Flow Injection Colorimetry Systems and is also responsible for running our Carbon analyzer.. ...
Runco is proud to present the latest addition to our PlasmaWall™ product line with the addition of the biggest one yet. The XP-103DHD, with full 1080p resolution, is the worlds largest plasma display at 103 inches! It is supplied with the external DHD™ Controller/Processor featuring our renowned Vivix II™ video processing for stellar performance and custom installation versatility. The XP-103DHD elevates image quality to the highest levels, boasting impressive brightness and contrast ratio, deep black levels and the most accurate colorimetry yet available. Additional engineering enhancements include sophisticated 16-bit digital video processing resulting in 4096 steps of graduation for seamless images, completely void of the "solarization" and "stair stepping" characteristics previously plaguing digital flat panels.. The XP-103DHD features Runcos venerable VirtualWide™ aspect ratio mode for viewing 4:3 content in widescreen without appreciable picture degradation, as well as ISF™ ...
Light simulation comes to the CAD/CAM/CAE world…. Based on more than 150 man-years of R&D, OptisWorks can be used in various engineering activities like transport, electronics, lighting, and optics to design any object containing or using light, such as light guides, indoor/outdoor lighting, headlamps, backlights, … and now offers optimized opto-mechanical design and laser propagation simulation.. …for all users…. OptisWorks™ enables users, mechanical designers, project leaders, and optical engineers to analyze the effect of light- light levels, distribution, photometric performance, colorimetry analysis, compliance with standards - directly within their SolidWorks parts and assemblies.. All features fully communicate with SolidWorks, and allow users to quickly check many design iterations in order to better understand and optimize their product. Study the tolerancing of your optical and light systems with the Multi-configuration capabilities of SolidWorks.. …with an easy yet ...
Eros [2001]: Our early plan was to shoot in digital. We tested the Sony 24P HD camera, using all its features, and analyzing the results shot in different lighting conditions. After seeing the tests I told Michelangelo my thoughts. In short, I said that if his aim was to make this film with traditional photography, then I saw no reason to shoot digitally. No digital medium has the resolving power of film, nor its body or flexibility. On the other hand, if you wanted to interfere with the traditional rules of picture composition and image capture [for example, colorimetry], to achieve an alternative style of photography, digital might be a better choice.. Eros is a three-phase story, about the predicaments of a young couple. It has a typically Antonioni open ending. The script suggests there is a key element missing in the characters make up - but there is hope for them. In the final chapter we see a hint that they may yet again find equilibrium.. To reinforce this expressionistic ...
Determine the heat of combustion of paraffin in kJ/gram. Javascript Required You need to enable Javascript in your browser to edit pages. Acoustic beats from Mismatched Musical Frequencies Introduction to Astrophotography Why Is Quantum Mechanics So Difficult? Likely Errors In Colorimetry They cannot be avoided; they are part of the measuring process. See Answer Answer: ~15 Cal/g Qwater = mwater•Cwater•ΔTwater Qwater = (100.0 g)•(4.18J/g/°C)•(31.5°C - 18.2°C) = 5559.4 J = 5.5594 kJ Qwater = 5.5594 kJ•(1.00 Calorie/4.18 kJ) = 1.3560 Calorie The Please try the request again. You can only upload photos smaller than 5 MB. When processing your experimental results, a discussion of uncertainties should be included. The attempt at a solution For example one source of error may be that there is not enough insulation so there is some heat loss. Another possible source of error is the increase in heat by stirring due to increased kinetic energy. Every measurement has an inherent ...
weeks. Echocardiographic indexes including LV, LVID, LVPW, LVAW, EF and FS were recorded to determine the cardiac function. TTC staining was performed to determine the infarct size. Plasmatic level of hydrogen sulfide was detected by modified sulfide electrode. The enzymatic activities of SOD, CK, CAT and GSH were determined by colorimetry. The proteins extracted from myocardial tissues were determined by Western blot.(#br)Results(#br)The cardioprotective effects of SPRC (RS) on HF rats were confirmed by significant reduction of infarct size and improvement of cardiac function, with better effects than normal SPRC. LVAW, LVPW, FS and EF were elevated in SPRC (RS)-treated group compared with model group, while LV and LVID decreased. SPRC (RS) modulated antioxidant defenses in HF rats by preserving plasmatic levels of GSH, CAT and SOD and reducing CK leakage from cells. In addition, SPRC (RS) was shown to increase protein expression of Bcl-2 and decrease protein expression of Bax, caspase-3 and ...
Instrument View is a new GUI designed to make it clear, in an ST2110 and ST2022 world, which packets are audio, which are video, which are control and so on - something that has not been achieved previously.. With insights into the network and packet flow of any bitrate IP flows, Instrument Views extended metrics and intuitive real-time packet views enable instant understanding of whats going on in the network. The packet information also contains real-time ST2022.7 redundancy analysis, showing the precise correlation between the primary and secondary flows of ST2110 streams. In addition, Instrument View provides powerful analysis of the content with colorimetry of the video, and accurate understanding of the audio stream ...
Download VIPS for free. VIPS is an image processing suite designed for extremely large images and colorimetry. It consists of a powerful re-usable library and a graphical user interface.
Open only to those who can legally enter. Winning Entry will be verified prior to prize being awarded. No purchase necessary. You must be 18 or older to enter or have your parent enter for you. The winner will be chosen by Rafflecopter and announced on Rafflecopter and Grand Finale posts as well as emailed and the winner will have 48 hours to respond or a new winner will be chosen. This giveaway is in no way associated with Facebook, Twitter, Rafflecopter or any other entity unless otherwise specified. The number of eligible entries received determines the odds of winning. Giveaway was organized by Burgandy Ice @ Colorimetry and Prism Book Tours and sponsored by Gretchen Powell. VOID WHERE PROHIBITED BY LAW. ...
In this work, we have developed a simple, rapid, sensitive and selective colorimetric method for the quantitative determination of hypochlorite (ClO−) ions by using triangular silver nanoprisms (AgNPRs) as a colorimetric probe. The synthesized AgNPRs were characterized by UV-visible absorption and high resol
This invention is an ethanol sensitive solid useful for the colorimetric determination of ethyl alcohol in human breath samples. The solid is prepared by wetting silica gel with an acidic solution of a chromium(VI) salt and then heating to substantially dehydrate the material. The solid so prepared will change color from a deep orange to blue-green in the presence of alcohol. By packing the solid into a transparent tube and passing a known volume of breath sample through it, the blood alcohol content of the user may be estimated by measuring the color-changed portion of the packed tube.
Tunze Reef Excel Lab nitrate test Manufacturer: Tunze Colorimetric determination of nitrate, also indicates any present nitrite, 1-100mg/l (NO3-), for fr
Suppliers of Colourimetry including Colorimeters through to Spectrophotometers. Genuine customer reviews, as well as profile, product and service information.
The diffusion coefficients of dihydroresorufin and O2 were then determined by implementing two original optical methods in a specific coflow microchannel device, coupled with theoretical modelling. The knowledge of these parameters enabled at last to demonstrate that no enhancement of the gas-liquid mass transfer by this colorimetric reaction existed. Complementary information about the reliability of the colorimetric technique to characterize the gas-liquid mass transfer in milli/micro systems was also given. © 2016 American Institute of Chemical Engineers AIChE J, 63 : 2272-2284, 2017. © 2016 American Institute of Chemical Engineers ...
Color analysers, colorimeters and densitometers for transmission and reflection. Use your own computer plus one tiny interface, our free software, one (or more) probe(s) and accessories.
After 12 hours, fasting blood samples were taken by venipuncture into siliconized tubes (with 0.34 mmol/L EDTA; Vacutainer, Becton Dickinson) to assess cholesterol and triglyceride levels and into siliconized, citrated tubes (with 0.105 mmol/L sodium citrate; Vacutainer, Becton Dickinson) for detection of thrombin-antithrombin (TAT) complexes and prothrombin fragment 1+2 (F1+2). Blood samples for the measurement of FXI, FXII, and PK activation were collected in siliconized tubes to which a solution of 0.1 mmol/L EDTA, 0.1 mg/mL soybean trypsin inhibitor (type I-S from Sigma Chemical Co), and 20 mmol/L benzamidine (Acros; all final concentrations) was added to prevent any ex vivo activation of the clotting system. Platelet-poor plasma was obtained by centrifugation at 2000g for 20 minutes at room temperature. Plasma samples were stored at −70°C until assayed.. Total cholesterol in plasma was determined by an enzymatic colorimetric procedure with cholesterol esterase.17 Triglycerides were ...
D-Lactate Assay Kit (ab83429). Sensitivity |0.01 mM. Simple colorimetric assay to detect D-lactate in biological samples. Results in 40 min.
These classical chemistry tests utilize a variety of analytical techniques such as titration and colorimetric procedures to quantify the levels of elements and compounds in a sample.
In the presence of Pb2+, a cleaved enzyme-substrate complex releases ssDNA that adsorbs onto and stabilizes gold nanoparticles (AuNPs) against salt-induced aggregation. In the absence of Pb2+, the uncleaved complex can not stabilize the AuNPs, resulting in purple-blue AuNP aggregates (see figure). The sensor has a low detection limit of 3 nM, a high selectivity, and a tunable dynamic range. ...
Activation of ICE-family proteases/caspases initiates apoptosis in mammalian cells. The FLICE/Caspase-8 Colorimetric Assay Kit provides a simple and convenient means for assaying the activity of caspases that recognize the sequence IETD. The assay is based on spectrophotometric detection of the chromophore p-nitroanilide (pNA) after cleavage from the labeled substrate IETD-pNA. The pNA light emission can be quantified using a spectrophotometer or a microtiter plate reader at 400- or 405-nm. |p>‧ Detection method- Spectrophotometer (OD-400- or 405-nm) or a microtiter plate reader|br>‧ Sample type- Cell and tissue lysates|br>‧ Species reactivity- Mammalian |br>‧ Applications- Detect early/middle stages of apoptosis; differentiate apoptosis from necrosis.|p>|b>Features and Benefits|/b>|br>‧ Simple one-step procedure; takes 1-2 hours|br>‧ Fast and convenient|br>‧ Comparison of the absorbance of pNA from an apoptotic sample with an uninduced control allows determination of the fold increase in
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When the quantification of an analyte is based on a color change detected by a change in the amount of light transmitted or reflected, undiluted samples often saturate the detection range of the assay. Thus, very often, the sample needs to be diluted for reliable quantification. Disclosed are systems and method, including various configurations of fluidic circuits for us on an optical bio-disc, that advantageously allow the use of undiluted and/or whole blood samples for colorimetric assays on optical bio-disc is described.
The present invention is directed to a reflectometer-based apparatus and method for colorimetric analysis. It includes use of a test strip provided with an aperture over which a translucent colorimetric, indicator-bearing matrix is affixed. The invention includes a test strip holder that includes a test strip holding channel provided with a white background ...
The Colour Comparator is a compact, handy colorimetric unit which is suitable both for mobile and stationary analysis work.. Models available:. Checkit Comparator. The CHECKIT Comparator is supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy to-use colorimetric analysis system.. Comparator 2000+. With its accessories, the Comparator 2000+ is an extremely versatile, modular system for testing water.. It is simple to use yet is uncompromising in terms of precision and reproducibility of results.. ...
This paper introduces the basic steps to build a similarity-based visualization tool for large image collections. We build the similarity metrics based on human perception. Psychophysical experiments
Placing an aliquot of a urine sample in an automated analyzer first sampling cup, and a standard containing a known quantity of nitrite in a second cup. Injecting known specified amounts of each sample from these cups into discrete cuvettes in the autoanalyzer, injecting at least one reagent composition in an aqueous medium containing a buffer, a compound to remove substances in the urine interfering with a colorimetric reaction, oxidized glutathione, and B-nicotinamide adenine dinucleotide phosphate or nicotinamide adenine dinucleotide and reading at a preprogrammed code in an automated analyzer at a preprogrammed wavelength to compare the patients urine with the standard to determine quantitatively the presence of bacterial nitrite in the patients urine.
The Lowry protein assay is a biochemical assay for determining the total level of protein in a solution. The total protein concentration is exhibited by a color change of the sample solution in proportion to protein concentration, which can then be measured using colorimetric techniques.. ...
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Qualitative and quantitative colorimetric tests and man-ometric determinations have been used to detect and measure enzyme activity. Because PPOs use molecular
Red Seas Phosphate Pro Reef Test Kit is an advanced colorimetric test with comparator, measuring the level of Phosphate in your reef aquarium, with exceptionally high accuracy of 0.02ppm PO4
MACS® Anti-Biotin-Alkaline Phosphatase has been developed as a secondary antibody for indirect labeling in conjunction with biotinylated primary antibodies. Alkaline phosphatase works with precipitating substrates such as NBT/BCIP as well as soluble substrates such as pNPP to produce a colorimetric reaction. - 日本
Assay protocol for the colorimetric detection of glucose-6-phosphate in biological samples using the glucose-6-phosphate assay kit.
The colorimetric detection is one of the popular methods of quantitation of analytes in PBDs. Color developing reagents are used on the micro-reaction chambers on paper. The color developing reagent then reacts with the analyte of interest when the later is applied specifically and quantitatively. Simple and widely available instrumentations like a office scanner or a camera (could be a mobile phone camera) are used to capture the color which is then quantitated by measuring the signal using image processing software. If you dont have camera and/ or image processing software, dont worry. Scientists from Colorado State University have developed even a simpler method to quantitate analytes. This interesting work has recently been published in Lab on a Chip Journal. ...
A fluorescent red composition providing a coating having chromaticity coordinates (x, y) within the area defined by (0.648, 0.351), (0.735, 0.265), (0.629, 0.281) and (0.565, 0.346) in terms of the CIE 1931 Standard Colorimetric System and measured using 0/45 geometry and evaluated with CIE Standard Illuminant D65 and a fluorescence luminance factor of at least about 8; articles comprising the composition or coating, and methods of making.
This assay protocol is suitable for the colorimetric detection of Glucose-6-Phosphate (G6P) in cell and tissue culture supernatants, urine, plasma, serum, and other biological samples using the Glucose-6-Phosphate Assay Kit (MAK014). G6P concentration is determined by a coupled enzyme assay, which results in a colorimetric (450 nm) product, proportional to the G6Ppresent. This kit has a linear range of detection between 0.2-1.0 nmole.. ...
Fluorescent Dyes , Enzyme Detection Reagents , Caspase 9 Substrate 1, chromogenic; pNA (4-nitroaniline)-derived caspase substrates are widely used for the colorimetric detection of various caspase activities. Cleavage of pNA peptides by caspases generates pNA that is monitored colorimetrically at ~405 nm. pNA has maximum absorption around 408 nm.; Caspase-9 substrate; Ac-LEHD-pNA; Ac-Leu-Glu-His-Asp-pNA
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Self-coating was the largest revenue grossing segment of the cell culture protein surface coatingmarket in 2015. It is expected to uphold its dominance during the forecast period owing to its large application in 2D and 3D cell cultures.. The precoated product segment is the fastest growing segment due to growing popularity of multiwell/microwell plates for in vitro applications.. The synthetic protein segment is anticipated to grow at the fastest rate during forecast period, due to its advantages over other protein types such as reduced risk of contamination and simplified composition.. Request a sample of the report: http://www.orbisresearch.com/contacts/request-sample/267648. Existence of big biopharmaceutical companies and highly developed healthcare infrastructure is projected to drive the demand for products of the target market in the region during forecast period.. Asia Pacific region is anticipated to be the fastest growing segment over the forecast period.. Rapidly booming ...
Self-coating was the largest revenue grossing segment of the cell culture protein surface coatingmarket in 2015. It is expected to uphold its dominance during the forecast period owing to its large application in 2D and 3D cell cultures.. The precoated product segment is the fastest growing segment due to growing popularity of multiwell/microwell plates for in vitro applications.. The synthetic protein segment is anticipated to grow at the fastest rate during forecast period, due to its advantages over other protein types such as reduced risk of contamination and simplified composition.. Request a sample of the report: http://www.orbisresearch.com/contacts/request-sample/267648. Existence of big biopharmaceutical companies and highly developed healthcare infrastructure is projected to drive the demand for products of the target market in the region during forecast period.. Asia Pacific region is anticipated to be the fastest growing segment over the forecast period.. Rapidly booming ...
Download Probest - Model CL-201 - Chloride Online Analyzer Brochure. CL-201 adopts DPD colorimetric method to measure concentration of residual chloride.The ...
Caspase-10 Assay Kit (Colorimetric) is used for detecting the activity of caspases that recognize the sequence AEVD using colorimetric method. (KA0730) - Products - Abnova
Caspase-3 Assay Kit (Colorimetric) is used for detecting the activity of caspases that recognize the sequence DEVD using colorimetric method. (KA0740) - Products - Abnova
A cloudy yellow to orange coloured slightly viscous liquid with a rich aroma and taste of butter and milk. However upon aging and storage, the product will develop a darker colour due to a slight colour reaction with Maltol which is very sensitive to ferric ions pick up. However, we assure that the flavour profile will not be affected and the product is within our standard ...
How Does ROIDTEST™ Work? ROIDTEST™ contains chemical reagents, which interact with certain steroid substances to produce color reactions. The user checks these
Portable Meters Benchtop Meters Electrodes & Probes Solutions Accessories Chemical Test Kits Checker HC Colorimeter Porta...
SYNOPSIS. Further studies, both theoretical and experimental, have been made on the method of photometry and colorimetry previously proposed by the author.. In the light of this work the method is now proposed as a complete and satisfactory solution of the practical problem of the visual photometry and colorimetry of all illuminants (including the important phases of daylight) whose spectral distribution approximates the Planckian formula closely enough to give a color match. This solution is based upon the principle of the additivity of homogeneous luminosities and the assumption of a standard visibility function.. The method falls in the general class of substitution "equality of brightness" methods. All brightness matches are made at a color match. This color match is obtained by modifying the color of a constant comparison source by allowing its light to pass through a train of nicol prisms and quartz plates which form, in effect, a blue or yellow filter of continuously adjustable spectral ...
Looking for online definition of colorimeter in the Medical Dictionary? colorimeter explanation free. What is colorimeter? Meaning of colorimeter medical term. What does colorimeter mean?
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Back in 2012 Nicolas Ménard created a project at the intersection between graphic design and visual arts. The original idea was to design a book on the topic of colour, with a random process that generated abstract forms.
The need to create high quality coffees is due to several variables that are simply beyond the control of the coffee farmer and producers to be able to determine which grains have the best quality. Each coffee bean passes through stringent quality checks to ensure they meet stringent international quality standards. In the past, coffee growers and roasters had to rely solely on visual ability and taste to determine grain maturation and availability. Even with the experience of coffee producers and tasters, it is very difficult to maintain quality consistency, since human perception can easily change depending on the behavior and the daily environment ...
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Colorimetric detection of reaction products is typically preferred for initial surveys of acetyl xylan esterase (AcXE) activity. This chapter will describe common colorimetric methods, and variations...
In this work, uniformly-dispersed platinum nanoparticles (PtNPs) were synthesized by a simple chemical reduction method, in which citric acid and sodium borohydride acted as a stabilizer and reducer, respectively. An ultrasensitive colorimetric sensor for the facile and rapid detection of Ag+ ions was constructed based on the peroxidase mimetic activities of the obtained PtNPs, which can catalyze the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) by H2O2 to produce colored products. The introduced Ag+ would be reduced to Ag0 by the capped citric acid, and the deposition of Ag0 on the PtNPs surface, can effectively inhibit the peroxidase-mimetic activity of PtNPs. Through measuring the maximum absorption signal of oxidized TMB at 652 nm, ultra-low detection limits (7.8 pM) of Ag+ can be reached. In addition to such high sensitivity, the colorimetric assay also displays excellent selectivity for other ions of interest and shows great potential for the detection of Ag+ in real water samples.
Uric acid is the primary end product from purine derivatives in human metabolism. Excessive production of uric acid may lead to gout, hyperuricemia and kidney disorder: Different analytical methods for uric acid such as Colorimetry, commercial enzyme electrode and commercially available uric acid kit are used widely. The main purpose of this research was to develop,a screen printed electrode based uric acid biosensor using gelatin immobilized uricase enzyme extracted from Comamonas sp. BTUA. The enzyme catalyzed oxidation of uric acid in presence of oxygen, producing allantoin and hydrogen peroxide. The linearity of the standard curve in the concentration ranges from 5.94 x 10(-6) to 4.75 x 10(-4) molar was satisfactory and could be used for the quantitative determination of uric acid in human serum samples. The limit of detection (LOD) was 2.26 mu M and sensitivity was evaluated as 3.31 nA mu M-1 of uric acid. One Modified electrode could be used for six measurements with 95%. accuracy up to 25 ...
A fatality due to the ingestion of solution containing phenol and o-cresol is described. The pathological findings were typical of acute substantial poisoning. Blood, urine and stomach content were obtained during post mortem examinations. Phenol and o-cresol were identified using GC/MS. The extractions from autopsy materials were obtained as follows: by gel permeation with cyclohexane/dichloromethane from stomach content, by solid phase extraction (SPE) from urine and by deproteinization with acetonitrile from blood. The phenol and o-cresol concentrations in the samples were found, respectively, as follows: 115.0 and 5.0 μg/g in the stomach contents, 58.3 and 1.9 μg/ml in the blood, 3.3 and 20.5 μg/ml in the urine. Distributions of phenol in fatal poisonings have been reported [J. Forensic Sci. 27 (1982) 729; Forensic Sci. Int. 19 (1982) 177], but, usually, colorimetry was used as the analytical method and it cannot exclude the interference of other phenolic compounds. ...
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Some embryos of Ciona intestinalis which were permanently cleavage-arrested with cytochalasin B at the 1-cell, 4-cell, or 8-cell stages produced, after 12 or 16 h of development time (18 °C), a level of muscle acetylcholinesterase activity equal to that found in normal early and later larval stage embryos of the same age. Enzyme activity was measured quantitatively in single whole embryos by a colorimetric procedure using microdensitometry. Quantitative regulation of a differentiation end product indicated that the usual transcriptional and translational control mechanisms for that histospecific protein continued to operate normally in the cleavage-arrested embryos. Acetylcholinesterase expression was apparently regulated independently of the usual cell cytoplasmic volume in the muscle lineage cells and possibly also independently of the normal nuclear number in the lineage. There is an egg cytoplasmic determinant that is segregated into the muscle lineage cells during cleavage and which ...
Total iron-binding capacity (TIBC) or sometimes transferrin iron-binding capacity is a medical laboratory test that measures the bloods capacity to bind iron with transferrin. It is performed by drawing blood and measuring the maximum amount of iron that it can carry, which indirectly measures transferrin since transferrin is the most dynamic carrier. TIBC is less expensive than a direct measurement of transferrin. The TIBC should not be confused with the unsaturated iron-binding capacity or UIBC (LOINC 2501-5, 22753-8 & 35216-1). The UIBC is calculated by subtracting the serum iron from the TIBC. Taken together with serum iron and percent transferrin saturation clinicians usually perform this test when they are concerned about anemia, iron deficiency or iron deficiency anemia. However, because the liver produces transferrin, alterations in function (such as cirrhosis, hepatitis, or liver failure) must be considered when performing this test. It can also be an indirect test of liver function, ...
TEONG, TEOH BOON (2015) Colorimetric detection of dengue by single tube reverse- transcription-loop-mediated isothermal amplification. PLoS One, 10 (9). e0138694. TEONG, TEOH BOON (2015) Detection of Langat virus by TaqMan real-time one-step qRT- PCR method. Scientific Reports, 5. p. 14007. TEONG, TEOH BOON (2015) Early detection of dengue virus by use of reverse transcription-recombinase polymerase amplification. Journal of Clinical Microbiology, 53 (3). pp. 830-7. TEONG, TEOH BOON (2015) High producing tumor necrosis factor alpha gene alleles in protection against severe manifestations of dengue. International Journal of Medical Sciences, 12 (2). pp. 177-86. TEONG, TEOH BOON (2015) The IL-10 and IL-12B gene polymorphisms in the multiethnic Malaysian population. Genetics and Molecular Research, 14 (2). pp. 3257-63. TEONG, TEOH BOON (2014) Baicalin, a metabolite of baicalein with antiviral activity against dengue virus. Scientific Reports, 4. p. 5452. TEONG, TEOH BOON (2013) Comparison of real ...
β-Endorphin is known to stimulate phospholipase production by Malassezia pachydermatis during canine dermatoses. The role of β-endorphin in Malassezia infection in humans is not well studied. The present study compares the influence of β-endorphin on Malassezia globosa and Malassezia restricta isolated from patients with seborrhoeic dermatitis/dandruff (SD/D) and healthy controls. Malassezia isolates (five each of the two species from patients and healthy controls) were grown on modified Dixons agar with or without 100 nmol/L β-endorphin. Phospholipase activity was quantified based on its ability to hydrolyze L-α-phosphatidylcholine dimyristoyl (phospholipid substrate). Free fatty acid was measured by a colorimetry method. In isolates from patients, the phospholipase activity significantly increased after exposure to β-endorphin (M. globosa, P = .04; M. restricta, P = .001), which did not occur in isolates from healthy controls. Moreover, after β-endorphin exposure the patient isolates ...
Transferrin saturation, measured as a percentage, is a medical laboratory value. It is the value of serum iron divided by the total iron-binding capacity. Of the transferrin that is available to bind iron, this value tells a clinician how much serum iron is bound. For instance, a value of 15% means that 15% of iron-binding sites of transferrin are being occupied by iron. For an explanation of some clinical situations in which this ratio is important, see Total iron-binding capacity. The three results are usually reported together. Normal reference ranges are: Serum iron: 60-170 μg/dL (10-30 μmol/L) Total iron-binding capacity: 240-450 μg/dL Transferrin saturation: 15-50% (males), 12-45% (females) μg/dL = micrograms per deciliter μmol/L = micromoles per liter Laboratories often use different units and "normal" may vary by population and the lab techniques used. To help clinicians interpret their patients results, laboratories are generally also required to report their normal or reference ...

adiabatic laser colorimetry | Photonics Dictionary® | EDU.Photonics.comadiabatic laser colorimetry | Photonics Dictionary® | EDU.Photonics.com

Define adiabatic laser colorimetry: Method for studying absorption coefficients of low-loss materials, in which a sample is ... adiabatic laser colorimetry. Method for studying absorption coefficients of low-loss materials, in which a sample is allowed to ...
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Colorimetry | Thermo Fisher Scientific - AUColorimetry | Thermo Fisher Scientific - AU

We offer the colorimetry accessories youll need to support your colorimeter, including replacement vials and adapters, stir ... We offer a complete line of Thermo Scientific colorimetry, turbidity, and UV-Vis spectrophotometry meters for water and ... Offering a wide range of methods, optimum wavelengths, user-friendly displays, and easy calibration, our colorimetry meters are ...
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Colorimetry: How to Measure Color Differences | Test & Measurement | Photonics HandbookColorimetry: How to Measure Color Differences | Test & Measurement | Photonics Handbook

The use and importance of colorimetry has grown in unison with the increase of global manufacturing and processing. When ... Colorimetry: How to Measure Color Differences. Photonics Handbook Colorimetry, the science of color measurement, is widely ... colorimetry. The methods used to measure color and to define the results of the measurements.. colorimeter. 1. A visual ... In colorimetry, these components are referred to as X-Y-Z coordinates. Colorimeters, based on this theory of color perception, ...
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Practical Daylight Sources for Colorimetry | CIEPractical Daylight Sources for Colorimetry | CIE

This publication discusses the state-of-the-art of practical daylight sources for colorimetry. It provides information on these ...
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Colorimetry - WikipediaColorimetry - Wikipedia

Colorimetry is "the science and technology used to quantify and describe physically the human color perception." It is similar ... ISBN 0-240-80740-5. Schanda, János D. (1997). "Colorimetry" (PDF). In Casimer DeCusatis. Handbook of Applied Photometry. OSA/ ... MacEvoy, Bruce (2008-05-08). "Overview of the development and applications of colorimetry". Handprint.com. Retrieved 2008-07-17 ... Colorimetry: Understanding the CIE System. Wiley Interscience. doi:10.1002/9780470175637.ch6. ISBN 978-0-470-04904-4. Andreas ...
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Colourimetry Suppliers | Colorimeters to SpectrophotometersColourimetry Suppliers | Colorimeters to Spectrophotometers

Suppliers of Colourimetry including Colorimeters through to Spectrophotometers. Genuine customer reviews, as well as profile, ...
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Colorimetry (chemical method) - WikipediaColorimetry (chemical method) - Wikipedia

In physical and analytical chemistry, colorimetry or colourimetry is a technique "used to determine the concentration of ...
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Colorful detection: Coupling colorimetry with capillary electrophoresis - Ezine - separationsNOW.comColorful detection: Coupling colorimetry with capillary electrophoresis - Ezine - separationsNOW.com

... colorimetry is a technique for determining the concentration of a solution based on its absorption of a specific wavelength of ... On its own, however, this form of colorimetry, known as gold nanoparticle aggregation-based colorimetry (AuNP-ABC), cant be ... Traditionally, colorimetry is a technique for determining the concentration of a solution based on its absorption of a specific ... As a first test of this combination of CE and colorimetry, Qin and his colleagues tried using it to separate and detect three ...
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Colorimetry/Photometry | VWRColorimetry/Photometry | VWR

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OSA | Relative Spectral Energy Distribution of Standard Light Sources for Colorimetry*OSA | Relative Spectral Energy Distribution of Standard Light Sources for Colorimetry*

B. Hisdal, "Relative Spectral Energy Distribution of Standard Light Sources for Colorimetry*," J. Opt. Soc. Am. 48, 608-613 ( ... Relative Spectral Energy Distribution of Standard Light Sources for Colorimetry B. Hisdal ...
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Colorimetry - Part 4: CIE 1976 L*a*b* Colour space | CIEColorimetry - Part 4: CIE 1976 L*a*b* Colour space | CIE

Superseded by CIE Colorimetry - Part 4: 1976 L*a*b* Colour Space ...
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Colourimetry - Art or Science? Tickets, Tue, 21 Nov 2017 at 10:00 | EventbriteColourimetry - Art or Science? Tickets, Tue, 21 Nov 2017 at 10:00 | Eventbrite

GTC Workshops Organiser Clive North presents Colourimetry - Art or Science? - Tuesday, 21 November 2017 at Sony Digital Motion ... Colourimetry - Art or Science? Things to do in Iver Heath Seminar Film & Media ... Colourimetry - Art or Science?. GTC Workshops Organiser Clive North Tuesday, 21 November 2017 from 10:00 to 16:30 (GMT) Iver ... How and why it works (and sometimes doesnt). This workshop is a camera professionals guide to colorimetry, led by Alan ...
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SW-846 Test Method 8540: Pentachlorophenol in Soil by Ultraviolet (UV)-Induced Colorimetry | Hazardous Waste Test Methods / SW...SW-846 Test Method 8540: Pentachlorophenol in Soil by Ultraviolet (UV)-Induced Colorimetry | Hazardous Waste Test Methods / SW...

SW-846 Test Method 8540: Pentachlorophenol in Soil by Ultraviolet (UV)-Induced Colorimetry. The following document discusses ... Method 8540: Pentachlorophenol in Soil by UV-Induced Colorimetry, part of Test Methods for Evaluating Solid Waste, Physical/ ...
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Applications filed at Jun 29 2017 | COLORIMETRY APPARATUS AND IMAGE FORMING APPARATUS | Patents.comApplications filed at Jun 29 2017 | COLORIMETRY APPARATUS AND IMAGE FORMING APPARATUS | Patents.com

COLORIMETRY APPARATUS AND IMAGE FORMING APPARATUS. The colorimetry apparatus includes a light source for emitting light to a ...
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Large-area, uniform and low-cost dual-mode plasmonic naked-eye colorimetry and SERS sensor with handheld Raman spectrometer -...Large-area, uniform and low-cost dual-mode plasmonic naked-eye colorimetry and SERS sensor with handheld Raman spectrometer -...

... highly-uniform plasmonic nano-mushroom substrate based on plastic for naked-eye plasmonic colorimetry and surface-enhanced ... Large-area, uniform and low-cost dual-mode plasmonic naked-eye colorimetry and SERS sensor with handheld Raman spectrometer ... Large-area, uniform and low-cost dual-mode plasmonic naked-eye colorimetry and SERS sensor with handheld Raman spectrometer Z. ... The label-free detection of biotin-streptavidin interaction by both SERS and colorimetry was demonstrated with FlexBrite. The ...
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OSA | The Colorimetry and Photometry of Daylight and Incandescent Illuminants by the Method of Rotatory Dispersion*OSA | The Colorimetry and Photometry of Daylight and Incandescent Illuminants by the Method of Rotatory Dispersion*

The Colorimetry and Photometry of Daylight and Incandescent Illuminants by the Method of Rotatory Dispersion Irwin G. Priest ... Disk Colorimetry; Including a Comparison of Methods for Computing Tristimulus Values for Certain Disks Dorothy Nickerson. J. ... Report of Committee on Colorimetry for 1920-21 L. T. Troland. J. Opt. Soc. Am. 6(6) 527-596 (1922) ... Irwin G. Priest, "The Colorimetry and Photometry of Daylight and Incandescent Illuminants by the Method of Rotatory Dispersion ...
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Using Colorimetry - Using Colorimetry Beers Law to Determine Concentration Introduction In this experiment different dilutions...Using Colorimetry - Using Colorimetry Beer's Law to Determine Concentration Introduction In this experiment different dilutions...

Using Colorimetry & Beers Law to Determine Concentration Introduction. In this experiment different dilutions of the stock ... Using Colorimetry from CHM 2045L at University of Florida. ... Using Colorimetry - Using Colorimetry Beers Law to... * SCHOOL ... Using Colorimetry - Using Colorimetry Beers Law to.... This preview shows document pages 1 - 2. Sign up to view the full ... Using Colorimetry & Beers Law to Determine Concentration Introduction . In this experiment different dilutions of the stock ...
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ColorimetryColorimetry

Intuitive Colorimetry if overlays are helping. The next step is to fine tune the colour to the patients individual needs and ... It is advisable to have an annual colorimetry check as a change in the optimal colour can occur over time. ... Spectacles with Precision Tinted Lenses can then be prescribed following an Intuitive Colorimetry assessment. These are more ...
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Measurement of Intensity, Velocity, Spectral Content, Polarisation, Phase or Pulse Characteristics of Infra-Red, Visible or...Measurement of Intensity, Velocity, Spectral Content, Polarisation, Phase or Pulse Characteristics of Infra-Red, Visible or...

COLORIMETRY DEVICE. In order to provide a compact colorimetry device with which a tint on the surface of a specimen can be ... precisely measured, this colorimetry device is equipped with an integrating sphere, a light source unit, a light-receiving unit ...
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LMT  ColorimetryLMT Colorimetry

Instruments for Colorimetry. Tristimulus colormeters for color measurement on light sources, e.g. lamps, luminaires, light ...
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lab 6 report[1] - Determining the mass percent of copper in a penny minted between 1982-2005 using colorimetry and Beers Law...lab 6 report[1] - Determining the mass percent of copper in a penny minted between 1982-2005 using colorimetry and Beer's Law...

Determining the mass percent of copper in a penny minted between 1982-2005 using colorimetry and Beers Law Introduction The ... Determining the mass percent of copper in a penny minted between 1982-2005 using colorimetry and Beers Law Introduction The ... pennies by a fabricator chosen by the United States Mint using colorimetry and Beers Law. The experimenters were informed that ...
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  • We offer the colorimetry accessories you'll need to support your colorimeter, including replacement vials and adapters, stir rods, cleaning brush, kits, and more. (thermofisher.com)
  • The label-free detection of biotin-streptavidin interaction by both SERS and colorimetry was demonstrated with FlexBrite. (rsc.org)
  • On its own, however, this form of colorimetry, known as gold nanoparticle aggregation-based colorimetry (AuNP-ABC), can't be used to detect specific analytes in complex samples, because the gold nanoparticles will interact with any positively-charged analytes. (separationsnow.com)
  • The use and importance of colorimetry has grown in unison with the increase of global manufacturing and processing. (photonics.com)
  • The colorimetry apparatus includes a light source for emitting light to a surface of a detected object, a diffraction grating for spectrally separating, for. (patents.com)
  • As a first test of this combination of CE and colorimetry, Qin and his colleagues tried using it to separate and detect three polyamidoamine (PAMAM) dendrimers, which are being developed as drug delivery vehicles, in diluted urine. (separationsnow.com)
  • Qin and his colleagues are now looking to test this combination of CE and colorimetry on other positively-charged analytes in complex samples. (separationsnow.com)