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)
The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (Grant & Hackh's Chemical Dictionary, 5th ed)
Endoscopic examination, therapy or surgery performed on the interior of blood vessels.
Compounds in which one or more of the ketone groups on the pyrimidine ring of barbituric acid are replaced by thione groups.
The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.
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)

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 scientific measurement and quantification of color, typically using a colorimeter or spectrophotometer. In the medical field, colorimetry may be used in various applications such as:

1. Diagnosis and monitoring of skin conditions: Colorimeters can measure changes in skin color to help diagnose or monitor conditions like jaundice, cyanosis, or vitiligo. They can also assess the effectiveness of treatments for these conditions.
2. Vision assessment: Colorimetry is used in vision testing to determine the presence and severity of visual impairments such as color blindness or deficiencies. Special tests called anomaloscopes or color vision charts are used to measure an individual's ability to distinguish between different colors.
3. Environmental monitoring: In healthcare settings, colorimetry can be employed to monitor the cleanliness and sterility of surfaces or equipment by measuring the amount of contamination present. This is often done using ATP (adenosine triphosphate) bioluminescence assays, which emit light when they come into contact with microorganisms.
4. Medical research: Colorimetry has applications in medical research, such as studying the optical properties of tissues or developing new diagnostic tools and techniques based on color measurements.

In summary, colorimetry is a valuable tool in various medical fields for diagnosis, monitoring, and research purposes. It allows healthcare professionals to make more informed decisions about patient care and treatment plans.

Analytical chemistry is a branch of chemistry that focuses on the identification and quantification of chemical components within a sample. This field involves developing and using various analytical techniques and methods to determine the presence, concentration, structure, and purity of different chemicals or compounds in a mixture.

Some common analytical techniques include:

1. Spectroscopy: Using light or other electromagnetic radiation to study the interaction between matter and energy, providing information about the composition, structure, and properties of a sample. Examples include UV-Vis, IR, NMR, and mass spectrometry.
2. Chromatography: A separation technique that separates components in a mixture based on their interactions with a mobile phase (gas or liquid) and a stationary phase (solid or liquid). Common methods include gas chromatography (GC), liquid chromatography (LC), and thin-layer chromatography (TLC).
3. Electrochemical analysis: Measuring the electrical properties of a sample, such as potential, current, or resistance, to determine its composition or concentration. Examples include potentiometry, voltammetry, and conductometry.
4. Thermal analysis: Examining the physical and chemical changes that occur in a sample when it is heated or cooled, providing information about its composition, structure, and properties. Techniques include differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA).
5. Spectrometry: Measuring the intensity of light dispersed by a sample as a function of wavelength or frequency to determine its composition, structure, or properties. Examples include atomic absorption spectroscopy (AAS), inductively coupled plasma mass spectrometry (ICP-MS), and X-ray fluorescence spectrometry (XRF).

Analytical chemists often work in various industries, such as pharmaceuticals, food, environmental testing, and forensics, to ensure product quality, safety, and compliance with regulations. They may also contribute to research and development efforts by developing new analytical methods or improving existing ones.

Angioscopy is a medical diagnostic procedure that uses a small fiber-optic scope, called an angioscope, to directly visualize the interior of blood vessels. The angioscope is inserted into the vessel through a small incision or catheter and allows physicians to examine the vessel walls for abnormalities such as plaque buildup, inflammation, or damage. This procedure can be used to diagnose and monitor conditions such as coronary artery disease, peripheral artery disease, and vasculitis. It can also be used during surgical procedures to assist with the placement of stents or other devices in the blood vessels.

Thiobarbiturates are a class of barbiturates that contain a sulfur atom in place of the oxygen atom in the urea-like structure. They are central nervous system depressants, which means they can cause decreased heart rate, blood pressure, and breathing. These properties make them useful for anesthesia and sedation, but also contribute to their potential for abuse and dependence.

Thiobarbiturates have been largely replaced by other classes of drugs due to their narrow therapeutic index (the difference between the effective dose and a toxic dose is small) and high potential for overdose. Examples of thiobarbiturates include thiopental, used for induction of anesthesia, and pentobarbital, which has been used for both anesthesia and as a treatment for seizures.

It's important to note that barbiturates and thiobarbiturates are controlled substances in many countries due to their potential for abuse and dependence. They should only be prescribed and administered by trained medical professionals.

In the context of medical terminology, 'color' is not defined specifically with a unique meaning. Instead, it generally refers to the characteristic or appearance of something, particularly in relation to the color that a person may observe visually. For instance, doctors may describe the color of a patient's skin, eyes, hair, or bodily fluids to help diagnose medical conditions or monitor their progression.

For example, jaundice is a yellowing of the skin and whites of the eyes that can indicate liver problems, while cyanosis refers to a bluish discoloration of the skin and mucous membranes due to insufficient oxygen in the blood. Similarly, doctors may describe the color of stool or urine to help diagnose digestive or kidney issues.

Therefore, 'color' is not a medical term with a specific definition but rather a general term used to describe various visual characteristics of the body and bodily fluids that can provide important diagnostic clues for healthcare professionals.

Tetrazolium salts are a group of compounds that are commonly used as indicators of cell viability and metabolic activity. These salts are reduced by the action of dehydrogenase enzymes in living cells, resulting in the formation of formazan dyes, which are colored and can be measured spectrophotometrically.

The most commonly used tetrazolium salt is 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), which is reduced to a purple formazan product by mitochondrial dehydrogenases in viable cells. Other tetrazolium salts include 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT), which is reduced to a water-soluble formazan product, and 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS), which is reduced to a water-soluble formazan product by NAD(P)H-dependent dehydrogenases.

Tetrazolium salts are widely used in cell culture studies, toxicity testing, and drug development to assess cell viability, proliferation, and cytotoxicity. However, it is important to note that tetrazolium salt reduction can also occur in some non-viable cells or under certain experimental conditions, which may lead to false positive results. Therefore, these assays should be used with caution and validated for specific applications.

... is "the science and technology used to quantify and describe physically the human color perception". It is similar ... ISBN 978-0-240-80740-9. 1. Schanda, János D. (1997). "Colorimetry" (PDF). In Casimer DeCusatis (ed.). Handbook of Applied ... 4. MacEvoy, Bruce (8 May 2008). "Overview of the development and applications of colorimetry". Handprint.com. Retrieved 17 July ... 8. NIST Publications related to colorimetry. Colorlab MATLAB toolbox for color science computation and accurate color ...
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 ...
... , or forensic color analysis, is the examination of specimen color for purposes of forensic investigation. ...
In physical and analytical chemistry, colorimetry or colourimetry is a technique used to determine the concentration of colored ... ISBN 978-90-5699-645-1. Astrof, Nathan S.; Horowitz, Gail (June 4, 2018). "Protein Colorimetry Experiments That Incorporate ...
Schanda, János (2007). "3. CIE Colorimetry". Colorimetry: Understanding the CIE System. Wiley. pp. 25-78. doi:10.1002/ ... CIE Colorimetry". In Schanda, János (ed.). Colorimetry: understanding the CIE system. John Wiley & Sons. Appendix A, p. 74. ... "CIE Standard Illuminants for Colorimetry". www.cie.co.at. CIE. 1999. Archived from the original on 2017-12-04. Retrieved 2018- ... Committee E-1.3.1 (Colorimetry) (June 19-28, 1967). Proceedings of the 16th session. Washington, D.C. Paris: CIE. "Relative SPD ...
Demonstrative color conversion applet CIE Colorimetry 15-3 CIE Technical Report Colorimetry 15 third edition (2004). An ... János Schanda (2007). Colorimetry. Wiley-Interscience. p. 61. ISBN 978-0-470-04904-4. "CIE 1976 L*a*b* colour space , eilv". ... CIE Colorimetry 15 (Third ed.). CIE. 2004. ISBN 3-901-906-33-9. International Color Consortium, Specification ICC.1:2004-10 ( ...
2007-07-27). Colorimetry. p. 305. doi:10.1002/9780470175637. ISBN 9780470175637. Stiles, W. S.; Birch, J. M. (1959). "N.P.L. ... Colorimetry. Wiley Interscience. pp. 9-24. doi:10.1002/9780470175637.ch2. ISBN 978-0-470-04904-4. (originally published by the ... "Golden Jubilee of Colour in the CIE-The Historical and Experimental Background to the 1931 CIE System of Colorimetry". In ... It includes CIE standard tristimulus colorimetry and transformations to a number of non-linear color appearance models (CIE Lab ...
Colorimetry. Archived from the original on 2019-07-14. Retrieved 2020-01-02. Henry Ludwell Moore (1895). Von Thünen's Theory of ...
July 27, 2007). Colorimetry. p. 305. doi:10.1002/9780470175637. ISBN 9780470175637. Moroney, Nathan; Fairchild, Mark D.; Hunt, ...
Commission internationale de l'éclairage (2004). "Chapter 5.1". Colorimetry. Vienna: Central Bureau of the CIE. ISBN 978-3- ... Hue Colorfulness White point Schanda, Janos (2007). Colorimetry : understanding the CIE system. [Vienna, Austria]: CIE/ ...
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 ... Colorimetry: Understanding the CIE System. Wiley Interscience. doi:10.1002/9780470175637.ch6. ISBN 978-0-470-04904-4. Zharinov ...
601 colorimetry. 480i can be transported by all major digital television formats (ATSC, DVB and ISDB) and on DVD. Television ...
Selenium meter Photometer , Photodetector Colorimetry , Photometry , Radiometry Light value Photomultiplier tubes for detecting ...
Values for the original 1953 NTSC colorimetry and later SMPTE C FCC standard. The following formulas assume: R , G , B , Y ∈ [ ... Color Monitor Colorimetry. Society of Motion Picture and Television Engineers (1994, 2004): Engineering Guideline EG 27-2004. ... Working Group on Studio Monitor Colorimetry, adopted the SMPTE C. The previous conversion formulas were deprecated, and the ...
2020 system colorimetry. ProPhoto RGB color space scRGB DCI-P3, used primarily for digital movie projection SMPTE 240M / SMPTE ... 2020). It uses a non-gamma transfer function (PQ or HLG) and system colorimetry (chromaticity of color primaries and white ... HSV and HSL are transformations of Cartesian RGB primaries (usually sRGB), and their components and colorimetry are relative to ...
doi:10.1016/S0040-4039(01)89979-2. G. H. Jerffery; J. Bassett; J. Mendham; R. C. Denney (1989). "Colorimetry and ... the concentration of nitrate or nitrite ions were deduced from the color intensity of the resulting red solution by colorimetry ...
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 ...
... colorimetry and quantization; transport of compressed and uncompressed LPCM audio; carriage of auxiliary data; and ...
2007). Colorimetry : understanding the CIE system. [Vienna, Austria]: CIE/Commission internationale de l'eclairage. ISBN 978-0- ... The abbreviated account of color space primaries in this section is based on descriptions in Colorimetry - Understanding The ... Color space primaries are precisely defined and empirically rooted in psychophysical colorimetry experiments which are ... Colorimetry: 245-259. doi:10.1002/9780470175637.ch10. ISBN 9780470175637. Grassmann's laws are known not to be exactly true in ...
Both the PAL and SECAM systems used the original 1953 NTSC colorimetry as well until 1970; unlike NTSC, however, the European ... Color Monitor Colorimetry. Society of Motion Picture and Television Engineers (1994, 2004): Engineering Guideline EG 27-2004. ... colorimetry without color correction, as approved in SMPTE standard 170M, "Composite Analog Video Signal - NTSC for Studio ... colorimetry should be assumed unless colorimetric data is included in the transport stream. Japanese NTSC never changed ...
ISBN 978-0-387-40595-7. W. T. Wintringham (1951). "Color Television and Colorimetry". In D L. MacAdam (ed.). Selected Papers on ... Colorimetry Fundamentals and Applications. Wiley - IS&T Series. p. 65. ISBN 978-0-470-09472-3. R. W. G. Hunt (2004). "The ... Colorimetry Fundamentals. SPIE - The International Society for Optical Engineering. p. 343. ISBN 0-8194-1296-1. Fairman, Hugh S ...
ISBN 978-0-307-43083-0. Fawcett, G S (1944). "Sixty years of colorimetry". Proceedings of the Physical Society. 56 (1): 8-21. ...
"New Vision With Colorimetry". Konica Minolta Color, Light, and Display Measuring Instruments. Retrieved 16 August 2015. Konica ...
4] Orion Colorimetry Theory. The Technical Edge. [5] (Articles with short description, Short description is different from ... A colorimeter is a device used in colorimetry that measures the absorbance of particular wavelengths of light by a specific ... 3] "Colorimetry" Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc. (2011) 17 November 2011 ... CQS Test Colorimetry [1] Anzalone GC, Glover AG, Pearce JM. Open-Source Colorimeter. Sensors (2013); 13(4):5338-5346 The ...
Ohta, Noboru; Robertson, Alan R. (2005). Colorimetry: Fundamentals and Applications. Wiley. p. 84. ISBN 0-470-09472-9. Priest, ...
Schanda, Janos (2007). Colorimetry: Understanding the CIE System. Canada: John Wiley & Sons, Inc. Harris, Douglas (1990). ...
... this is known as colorimetry. Hue is an interval level variable. Cohen's kappa Coherence (units of measurement) Hume's ...
Analytical chemistry Colorimetry Clark, RA; Krueger, GL (1985). "Aluminon: its limited application as a reagent for the ...
Brill, Michael H.; Robertson, Alan R. (2007). "Open Problems on the Validity of Grassmann's Laws". Colorimetry: Understanding ...
Budesinsky, B. W. (1979-03-01). "Arsenic colorimetry with silver diethyldithiocarbamate". Microchemical Journal. 24 (1): 80-87 ...
Colorimetry is "the science and technology used to quantify and describe physically the human color perception". It is similar ... ISBN 978-0-240-80740-9. 1. Schanda, János D. (1997). "Colorimetry" (PDF). In Casimer DeCusatis (ed.). Handbook of Applied ... 4. MacEvoy, Bruce (8 May 2008). "Overview of the development and applications of colorimetry". Handprint.com. Retrieved 17 July ... 8. NIST Publications related to colorimetry. Colorlab MATLAB toolbox for color science computation and accurate color ...
... Data in this section is extracted from CIE Datasets with permission of the CIE. ICC.1 colour ...
Colorimetry. Obviously, projectors all use the same basic colors: red, green and blue. But the way theyre blended and balanced ... Imagine Luke Skywalker with yellowish skin, or a meadow with olive-drab grass! Thats why colorimetry is an important criterion ... Unlike other, less subjective factors, colorimetry is really a question of personal preference. Certain projectors have "cold" ...
ISO 11664-1:2007 specifies colour-matching functions for use in colorimetry. Two sets of colour-matching functions are ...
This document defines three CIE standard illuminants for use in colorimetry: CIE standard illuminant A for the representation ...
Colorimetry Standard D4045 Standard Test Method for Sulfur in Petroleum Products by Hydrogenolysis and Rateometric Colorimetry> ... Standard Test Method for Sulfur in Petroleum Products by Hydrogenolysis and Rateometric Colorimetry. ... Standard Test Method for Sulfur in Petroleum Products by Hydrogenolysis and Rateometric Colorimetry D4045-19 ASTM,D4045-19,en- ...
This publication discusses the state-of-the-art of practical daylight sources for colorimetry. It provides information on these ... CIE standard illuminant A was introduced in 1932 to represent typical tungsten-filament lighting in colorimetry, and for ...
Colorimetry. EnviroLyzer™ Series of On-line Colorimetric Analyzers The EnviroLyzer™ Series are essentially on-line colorimeters ...
Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating ... Methyl red, smartphone digital image colorimetry, UV-Vis spectrophotometry, solidified floating organic drop microextraction, ... "Combination of smartphone digital image colorimetry and UV-Vis spectrophotometry as detection systems with solidified floating ...
Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents V. L. Singleton, Joseph A. Rossi ... Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents V. L. Singleton, Joseph A. Rossi ... Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents. V. L. Singleton, Joseph A. Rossi ... Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents Message Subject (Your Name) has forwarded a ...
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Exploring Colorimetry. Posted on: June 26th, 2019. The concept of color is one of the most fundamental building blocks of sense ...
Loading File - Colorimetry (Article). Download This may interest you The Basics Of Color Perception and Measurement. Hunterlabs ... Colorimetry (Article). Author: Shehreen Akhtar. *Wait a few seconds for the document to load, the time may vary depending on ... Colorimetry: Quantitative Analysis with Light (Article). John R. Amend and Dale A. Hammond ...
Fully reversible Beanie -Classic Black with the Colorimetry logo and our ... Classic Black with the Colorimetry logo and our "" design on the reverse side ...
Colorimetry. Registration Procedure(s). Specification Required. Expert(s). Roni Even, Ali Begen. Reference. [RFC4175]. ...
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1.4.7 Colorimetry *1.4.7.1 Operation Workflow of Colorimetry *1.4.7.1.1 Screen Configuration of the Colorimetry Screen ... 1.5.6 Colorimetry *1.5.6.1 Operation Workflow of Colorimetry *1.5.6.1.1 Screen Configuration of the Colorimetry Screen ... 1.4.7.2.1 Types of Charts for Colorimetry. *1.4.7.2.2 Registering a New Chart for Colorimetry *1.4.7.2.2.1 Chart Information ... 1.5.6.2.1 Types of Charts for Colorimetry. *1.5.6.2.2 Registering a New Chart for Colorimetry *1.5.6.2.2.1 Chart Information ...
In both cases, the trichromatic components of a sample are measured after calibration with a reference source whose spectrum is close to the spectrum of a normalized illuminant. These colorimeters are in general less accurate than those based on a monochromator (see below). ...
Colorimetry { "@context":"http://schema.org/", "@type":"BreadcrumbList", "itemListElement": [{"@type":"ListItem","position":1," ...
colour.colorimetry.whiteness_Stensby1968#. colour.colorimetry.whiteness_Stensby1968(Lab: ArrayLike) → NDArrayFloat[source]#. ... colour.colorimetry.sd_to_XYZ_tristimulus_weighting_factors_ASTME308. *colour.colorimetry.adjust_tristimulus_weighting_factors_ ...
The spectrometers are the main instrument to carry out the colorimetry and photometry measurement and analysis. Spectral ... The spectrometers are the main instrument to carry out the colorimetry and photometry measurement and analysis. Spectral ...
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Colorimetry Research CR-300-RH 2 nm spectral bandwidth spectroradiometer. Includes carrying case. ... shop/product/cr-300-rh-colorimetry-research-cr-300-rh-81 Colorimetry Research CR-300-RH. Product code: CR-300-RH ... Visit the Colorimetry Research web site for more information on CR-300-RH features and the CRI Application. ... The Colorimetry Research CR-300-RH is a high resolution spectroradiometer featuring 2nm spectral bandwidth and 0.8nm/pixel ...
CIE standard illuminants for colorimetry
Concentration of silica in ultra-pure water has a significant impact on product precision and yield in semiconductor/FPD processes. Reliably meeting measurement requirements of 1μg/L (1ppb). High-sensitivity measurements across the entire measurement…
colour.colorimetry.intermediate_lightness_function_CIE1976#. colour.colorimetry.intermediate_lightness_function_CIE1976(Y: ... colour.colorimetry.sd_to_XYZ_tristimulus_weighting_factors_ASTME308. *colour.colorimetry.adjust_tristimulus_weighting_factors_ ...
is backordered. We will ship it separately in 10 to 15 days.. ...
  • Orion™ AQUAfast Colorimetry Reagents. (gogenlab.com)
  • Decrease Quantity of Orion™ AQUAfast Colorimetry Reagents. (gogenlab.com)
  • CIE standard illuminant A was introduced in 1932 to represent typical tungsten-filament lighting in colorimetry, and for decades it has been used as a reference spectrum in photometer calibrations. (cie.co.at)
  • Tristimulus colorimetry technique has been used for quantitatively determining the crumb colour quality characteristics of high-fiber pan bread and buns made on a pilot scale in a commercial bakery. (agribiop.com)
  • ISO 11664-1:2007 specifies colour-matching functions for use in colorimetry. (iso.org)
  • colour.colorimetry. (readthedocs.io)
  • The spectrometers are the main instrument to carry out the colorimetry and photometry measurement and analysis. (spectralproducts.com)
  • Gravimetry and measurement uncertainties are aspects that form a part of such education, as well as measurements of pH and colorimetry. (lu.se)
  • Colorimetry Research, Inc. (colorimetryresearch.com)
  • Colorimetry Research CR-300-RH 2 nm spectral bandwidth spectroradiometer. (shopfsi.eu)
  • The Colorimetry Research CR-300-RH is a high resolution spectroradiometer featuring 2nm spectral bandwidth and 0.8nm/pixel resolution. (shopfsi.eu)
  • Visit the Colorimetry Research web site for more information on CR-300-RH features and the CRI Application . (shopfsi.eu)
  • Choosing the ideal color for a project is difficult, but with these tips based on color psychology and colorimetry, you'll be quicker than Lightning McQueen tearing up the track. (genial.ly)
  • This publication discusses the state-of-the-art of practical daylight sources for colorimetry. (cie.co.at)
  • Colorimetry is here to stay and not only in the field of beauty, but also in graphic design. (genial.ly)
  • It was a rewarding experience for him, since he was directly involved in research for the first time in his life and learned to use various experimental tools, including analytical spectroscopy, colorimetry, ion-exchange methodology, and column and paper chromatography. (nih.gov)
  • 14. Oriented boronate affinity-imprinted inverse opal hydrogel for glycoprotein assay via colorimetry. (nih.gov)
  • To balance the sensitivity, specificity, and test availability, here, we developed enhanced colorimetry, which is termed as a magnetic pull-down-assisted colorimetric method based on the CRISPR/Cas12a system (M-CDC), for SARS-CoV-2 detection. (nih.gov)
  • Colorimetry" is a term that refers to the science of colors. (tpop.com)
  • Colorimetry spaces calculated with CRAIC microspectrometer data include CIE XYZ, CIE LAB, tristimulus values and more. (microspectra.com)
  • We won't go into detail (it would be a shame to finish you off with boredom), but remember one thing: it is colorimetry that is at stake when we note the differences in colors between a visual viewed on a screen and the same visual following a print. (tpop.com)