Separation methods. Medical search. Frequent questions

Despite the availability of analytical methods, the difficulty in obtaining high-quality and standardized microsamples at the point of collection remains a major limitation of the process. (researchgate.net)
13.894940 BIA Separations is a biotechnology company focused on the production of methacrylate monolithic HPLC columns and developing industrial purification processes and analytical methods. (wikipedia.org)
The quantification of gold nanoparticles (AuNP) in environmental samples at ultratrace concentrations can be accurately performed by sophisticated and pricey analytical methods. (muni.cz)
The purpose of this chapter is to describe the analytical methods that are available for detecting, and/or measuring, and/or monitoring PCBs, its metabolites, and other biomarkers of exposure and effect to PCBs. (cdc.gov)
The intent is not to provide an exhaustive list of analytical methods. (cdc.gov)
Many of the analytical methods used for environmental samples are the methods approved by federal agencies and organizations such as EPA and the National Institute for Occupational Safety and Health (NIOSH). (cdc.gov)
Additionally, analytical methods are included that modify previously used methods to obtain lower detection limits, and/or to improve accuracy and precision. (cdc.gov)

This method is used to extract 7 Be from cooling water of the SINQ spallation source, and additionally for purification [4]. (psi.ch)
What are the Methods of Protein Separation and Purification? (medicilon.com)
The separation and purification of protein is an important part of biochemistry. (medicilon.com)
Medicilon is a preclinical drug development company (CRO) that can provide protein separation and purification technology services . (medicilon.com)
There are many methods for protein separation and purification , mainly as follows. (medicilon.com)

In a study published this week in Nature Chemistry , the researchers tested the method, called single-cell mRNA cytometry, first on cell lines, and then in a small number samples from patients with prostate cancer, hinting at potential clinical applications in oncology. (genomeweb.com)
The involved chemistry relies on basic knowledge of element separation involving radiochemical techniques such as liquid-liquid extraction, ion chromatography, pyrochemistry or precipitation. (psi.ch)

Magnetic gravity separation of iron ore. (prideofleyden.nl)
Several methods/techniques such as washing, jigging, magnetic separation, gravity separation, and flotation etc. are used to enhance the Fe content of the Iron ore and to reduce its gangue content. (prideofleyden.nl)
What Are The Gravity Separation Methods Used To Process Gold II? (miningpedia.net)
Gravity separation is one of the common methods for gold extraction. (miningpedia.net)
The spiral chute is the main gravity separation machine for gold extraction. (miningpedia.net)
Heavy media separation is a gravity separation process that crush ores into a certain size, and make the density of the fluid heavier than water (that is heavy medium). (miningpedia.net)
Hydraulic classification is a gravity separation process in which a wide class of particles is divided into two or more narrow classes according to the different sedimentation rates of ore particles in water. (miningpedia.net)
These are five common gravity separation methods for gold extraction. (miningpedia.net)
Numerous characterization tests showed the Hg was tightly absorbed and could not be removed or concentrated by leaching or gravity separation techniques. (cdc.gov)

as well as the phase separation between magnetism and superconductivity point to a conventional mechanism of the Cooper-pairing in CrAs. (nature.com)
Let's explore six ways to separate mixtures: This method is used in water treatment plants to separate dirt and other solid SEPARATING BY MAGNETISM. (cafedumetro.fr)
method of seperation for magnetism Separation Techniques Physical separation techniques are based on the physical properties of the substance. (cafedumetro.fr)

In this paper, the issue of audio source separation from a single channel is addressed, i.e. the estimation of several source signals from a single observation of their mixture. (sciweavers.org)
Hence, we call this separation process Informed Source Separation (ISS). (sciweavers.org)
Sound source separation forms the basis of machine listening systems. (speakerdeck.com)

BIA Separations was formed in 1998 by a group of scientists in Ljubljana, Slovenia to commercialize a new chromatographic resin based on monolith technology. (wikipedia.org)

Thus, the evaluation of the interfacing is also reported.The CEC work presented in this thesis details the examination of effects of physicochemical properties of different silica based C18 stationary phases on their chromatographic performance in CEC separations for a series of different acidic, neutral and basic type of analytes. (shu.ac.uk)
On the scale employed (3 mM), the chromatographic separation was complete, whereas chemical separation, although yielding microbiologically pure dl-threonine, resulted in a dl-allothreonine fraction containing much of the threo-form. (erowid.org)
The carbon-14 labelled products of both chemical and chromatographic separation have been tested for purity by microbiological assay with L. faecales. (erowid.org)
The quantitative recovery, the completeness of the separation and the economy of effort resulting from the use of the chromatographic procedure offer great advantages. (erowid.org)

The method uses two classes of magnetic particles that are labelled to selectively hybridize with different regions of a target mRNA. (genomeweb.com)
This problem can be overcome with the use of moving-zone density-gradient centrifugation, a method that separates particles by size and density. (pall.com)
Direct flow filtration or direct interception is a separation process in which filters retain particles that are larger than the nominal retention. (pall.com)
The method comprises the following steps: setting a radical magnetic field in a cyclone, and performing complex stacking on a magnetic force and forces such as a centrifugal force, a buoyancy force, a gravitational force and a fluid drag force to modify migration and enrichment regularities of magnetic particles, so as to realize re-distribution of the magnetic particles in the cyclone. (google.com)
Although a smaller particle size generally improves the degree of liberation, excessively fine particles can deteriorate the separation efficiency in magnetic separation. (prideofleyden.nl)
In the chemical industry, the problem of separating solid particles is encountered is the of separation of a single solid material into a number of size fractions or to obtain a uniform material for incorporation in a system wherein a certain chemical reaction is occurring. (chemicalslearning.com)
A number of methods of particle-size determination are available but most particle-size determinations are made by screen analysis when the particles are within the size range that can be measured by screens. (chemicalslearning.com)
In both methods, the resulting complex of magnetic particles with the target structure is washed and recovered using an appropriate magnetic separator. (cafedumetro.fr)
This separation method is influenced by the density of mineral particles, and the particle size and shape of mineral particles. (miningpedia.net)

The purpose of this work was to review the options for the characterization of HILIC stationary phases and their applications for separations of polar compounds in complex matrices. (springer.com)
Separation and characterization methods applicable to high-boiling petroleum fractions are described. (cdc.gov)

It combines the simplest capillary electrophoresis mode where separations are based on the differences in the electrophoretic migration of charged analytes under the influence of a high electric field with separation based on analyte partitioning between the mobile phase and stationery phase from liquid chromatography. (shu.ac.uk)
LC-MS (Liquid Chromatography-Mass Spectrometry) is a highly powerful analytical technique that combines the exceptional separation power of liquid chromatography with mass spectrometry, a highly sensitive chemical identification technique. (peakscientific.com)
For historical reasons, it has been reported that HILIC is a variant of normal phase liquid chromatography, but the separation mechanism used in HILIC is more complicated than that in NP-LC. (springer.com)
Hydrophilic interaction liquid chromatography has established itself as the separation mode of choice for uncharged highly hydrophilic and amphiphilic compounds that are too polar to be well retained in RP-LC but have insufficient charge to allow effective electrostatic retention in ion-exchange chromatography. (springer.com)

F. Švec, T. B. Tennikova, Z. Deyl Monolithic materials preparation, properties and applications Journal of Chromatography Library, Elsevier, 2003 CIM Convective Interaction Media BIA Separations: A Model SME? (wikipedia.org)
Chromatography is a method of separation which works on the principle of travel speed of components of a mixture. (excellup.com)
We wish to report that the application of column chromatography, using an ion-exchange resin ('Dowex-50', 250/500 mesh), led to the clean-cut and quantitative separation of dl-threonine and dlallothreonine. (erowid.org)
NP-LC has been widely used to separate various compounds, from nonpolar to highly polar compounds (note that chromatography was first introduced as a method used in separation science). (springer.com)
Figure 2 shows how HILIC complements other areas of chromatography and extends the range of separation options. (springer.com)

Full phase separation is prevented because RNA remains tethered to transcribed euchromatin through RNA polymerases. (nature.com)
Although it has recently been shown that heterochromatin segregates from euchromatin via the physical process of phase separation 15 , 16 , 17 , it remains unclear how the interspersed pattern that is characteristic of the internal organization of euchromatin is established and maintained. (nature.com)
Expected announcement of the position is spring 2023, and the project will focus on liquid-liquid phase separation mediated by phosphorylated intrinsically disordered proteins utilizing computer simulations in combination with SAXS. (lu.se)

To date, no method is available for independently synthesizing the two materials, which have different electrical properties, and many attempts have been performed to isolate individual materials from mixtures. (go.jp)
Filtration is another method for separation of mixtures. (cafedumetro.fr)
Distillation Definition Distillation is a widely used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. (cafedumetro.fr)
In general, PCB methods analyze for Aroclor mixtures, PCB homologs, or individual PCB congeners. (cdc.gov)

The threshold particle size for magnetic separation was varied between to 2 mm to determine the appropriate particle size for magnetic separation. (prideofleyden.nl)

We discuss several combinations of techniques that are suitable for separation/preconcentration and quantification of AuNP in complex and challenging aqueous matrices, such as tap, river, lake, brook, mineral, and sea waters, as well as wastewaters. (muni.cz)

Explain the mixture separation techniques? (cafedumetro.fr)
In the method of centrifugation, the centripetal and centrifugal forces are used to separate lighter and heavier components of mixture of two immiscible liquids. (excellup.com)
Therefore, mixture of one sublime and another substance can be separated using the method of sublimation. (excellup.com)
This method is used for separating dyes and pigments from a mixture. (excellup.com)
Fractional distillation is the process of separation of components of mixture into parts or fraction on the basis of fractional differences in their boiling points. (excellup.com)
It is a method of separating and purifying the desired target protein from the mixture using bioengineering technology. (medicilon.com)

Researchers have attempted to overcome the low-purity challenges of the differential ultracentrifugation method through density-gradient centrifugation. (pall.com)
We describe and demonstrate a method for identifying meaningful behavioral clusters that are hypothesized to be related to different psychological states that not only form a sound basis to differentials that can be tested scientifically using the hypothetico-deductive method by researchers, but also used by clinicians to enable the implementation of more precise and thus less demanding treatment programs. (frontiersin.org)

The slides used for Part 4 of INTERSPEECH 2023 Tutorial T5: Foundations, Extensions and Applications of Statistical Multichannel Speech Separation Models. (speakerdeck.com)

Isopycnic has its disadvantages because separation is based on density differences, but there is a risk of co-isolating exosomes and microvesicles since they may share similar buoyant densities 1 . (pall.com)
Here, we detail and model a blood separation principle which exploits discrete viscosity differences caused by blood particle sedimentation in a laminar flow. (researchgate.net)
Magnetic separation takes advantage of differences in the magnetic properties of minerals. (cafedumetro.fr)

Proteomic and metabolomic analyses of the microsamples of 283 proteins and 1351 metabolite features was consistent with samples generated via a conventional centrifugation method. (researchgate.net)
was consistent with samples generated via a conventional centrifugation method. (researchgate.net)
Using the method of centrifugation, most of the fat can be separated from milk. (excellup.com)
In milk, fat is suspended throughout the milk which is separated out using the method of centrifugation. (excellup.com)

Using E.coli spiked into the diluted blood sample, bacteria separation is demonstrated at an efficiency of 82 to 90% depending on the blood dilution using a single spiral chip (Paper-II). (kth.se)
In this latest interview conducted by AZOM's Jake Wilkinson, Greg discusses how on-site nitrogen generators can be used to improve the quality and efficiency of LC-MS separations whilst also saving laboratories money in the long term. (peakscientific.com)
Due to the relatively complex process and low efficiency of wind power mineral processing, the application of pneumatic separation has a great limitation. (miningpedia.net)

One such childhood adversity is separation of parents, however relatively little is known about the association between parental separation and inflammation in adulthood. (nih.gov)
The aims of this study were to (1) investigate whether parental separation is associated with inflammation in mid-life, (2) focus upon the mechanisms that may be involved in translating childhood adversities, such as parental separation, into poorer health outcomes in adulthood. (nih.gov)
We examine the association of parental separation in childhood, defined as the breakdown of the parent's partnership, and levels of C-reactive protein (CRP) in middle age. (nih.gov)
Participants that report parental separation have higher CRP levels at age 44 than those who grew up with both parents (β=0.16, 95% CI: 0.06, 0.27). (nih.gov)
Parental separation increases CRP in adulthood via chains of disadvantage across the life course. (nih.gov)
Parental Separation and Semen Quality in Young Men: A Population-Based Cohort Study. (bvsalud.org)
Parental separation may be a stressful life event with the potential to influence hormonal regulation of offspring reproductive health and thereby affect semen quality in young men . (bvsalud.org)
We aimed to study the association between parental separation in pregnancy or in childhood and semen quality in young men and to study whether the timing of parental separation in childhood was important. (bvsalud.org)
Data on parental separation were obtained longitudinal by self-report. (bvsalud.org)
Parental separation in pregnancy was not associated with semen quality . (bvsalud.org)
The association between parental separation in childhood and semen quality differed with the timing of parental separation . (bvsalud.org)
The timing of parental separation was important, and parental separation from birth was associated with higher semen quality , and parental separation in early childhood was associated with lower semen quality . (bvsalud.org)

Z. Liu, L. Li, H. Li, C. Liu, "Effective Separation Method for Single-Channel Time-Frequency Overlapped Signals Based on Improved Empirical Wavelet Transform," KSII Transactions on Internet and Information Systems, vol. 13, no. 5, pp. 2434-2453, 2019. (itiis.org)

Jul 06, 2018· physical separation methods for iron mining. (prideofleyden.nl)

All in all, the ability of these sample preparation methods for rapid and effective separation and detection of key pathogens in blood will help in decreasing the time of sepsis diagnosis and aid towards efficient phenotypic or genotypic analysis. (kth.se)
To improve the separation performance of time-frequency overlapped radar and communication signals from a single channel, this paper proposes an effective separation method based on an improved empirical wavelet transform (EWT) that introduces a fast boundary detection mechanism. (itiis.org)

In other systems, nitrogen can be used as a 'curtain gas' to facilitate the separation of sample and solvent ions and to prevent passage of solvent into the vacuum chamber of the mass spec. (peakscientific.com)
An apparatus for the separation of oppositely charged ions comprises a body including an inlet fluidly coupled to a first outlet and a second outlet. (cafedumetro.fr)

Takeshi Tanaka (Research Scientist) and Hiromichi Kataura (Leader), the Self-Assembled Nano-Electronics Group, the Nanotechnology Research Institute (Director: Nobutsugu Minami) of AIST (President: Tamotsu Nomakuchi), developed a method for high-purity separation of SWCNTs into metallic SWCNTs and semiconducting SWCNTs by using a column packed with agarose gel beads, as a part of Industrial Technology Research Grant Program of NEDO. (go.jp)
AIST has subsequently improved these methods and achieved a low-cost high-purity separation method. (go.jp)
However, due to problems associated with yield, purity, and cost, none of the proposed methods has been employed for mass production. (go.jp)
How important is the purity of the nitrogen used for LC-MS separations? (peakscientific.com)

This session will focus experimental methods to determine adsorption equilibrium and kinetics. (aiche.org)
There are several ways to model the separation mechanism: partition, adsorption, ion exchange, and size exclusion. (springer.com)

It is these channels that account for the media separation power and flow characteristics and ability to purify large biomolecules, such as large proteins, immunoglobulins, plasmid DNA and viruses with their activity intact. (wikipedia.org)
Today we will introduce the other methods used for gold extraction, chute ore dressing, heavy media separation and hydraulic or pneumatic separation. (miningpedia.net)

It was shown that the program effectively separates gamma-like showers, RF method does produce stable results and is robust with respect to input parameters and provides a simple control and setup of the procedure for extracting showers from gamma rays. (sissa.it)

This is the docket for the draft NIOSH methods for Beryllium. (cdc.gov)
NIOSH Method 7704 (air sampling) and Method 9110 (wipe sampling) and the backup data report for these methods. (cdc.gov)
NIOSH methods and associated backup data report that summarizes validation tests. (cdc.gov)

Since this method allows low-cost separation by automation of the separation process and by permitting reuse of the gel, industrial applications of separated metallic and semiconducting SWCNTs utilizing their characteristics are expected. (go.jp)
We discuss the possible disconnect between psychology and physiology in response to EW, as well as possible future clinical applications after marital separation. (nih.gov)
Development and applications of electrically driven separation methods. (shu.ac.uk)
Due to many benefits of magnetic methods of material treatment, the range of applications of this technique is enormous (Svoboda and Fujita, 2003). (prideofleyden.nl)
The commentary reviews the origins of AI, the use of machine learning methods, and emerging AI applications such as sensor technologies, robotic devices, or decision support systems. (cdc.gov)
Although still in their infancy, as AI-enabled applications are introduced in the workplace, occupational safety and health professionals need to develop a better understanding about AI methods and their potential effects on work and workers. (cdc.gov)
The practical elements aim at giving the participants basic knowledge in selecting and applying methods for different applications. (lu.se)
Marie Skepö (PI), in collaboration with the CoSAXS-team at MAX IV and Astra Zeneca in Gothenburg have obtained a grant through PRISMAS, which is a - PhD Research and Innovation in Synchrotron Methods and Applications in Sweden - is a new doctoral programme training the next generation of leading synchrotron experts. (lu.se)

In the first approach, a label-free, size-based, passive elasto-inertial microfluidics (visco-elastic flows) method was developed (Paper I and II). (kth.se)

Furthermore, as a step towards rapid genomic analysis, a novel method combining ITP-RCA (Isotachophoresis - Rolling Circle Amplification) was studied and optimized for real-time amplification (RCA), focusing and detection of bacterial DNA in a microfluidic channel (Paper IV). (kth.se)
In the other half of this thesis, the application of a fast electrophoretic separation to improve previous HPLC separation and mass spectrometric detection of surfactants with great importance in oil recovery is reported. (shu.ac.uk)
Small volumes of sample (5 mL), dispersive solvent (50 mu L), and extraction agent (70 mu L) were reported also for surfactant-assisted dispersive liquid-liquid microextraction (SA-DLLME) coupled with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS). The limits of detection (LOD) achieved using different combinations of methods as well as enrichment factors (EF) varied greatly, being 0.004-200 ng L-1 and 8-250, respectively. (muni.cz)

The gel-packed column can be used repeatedly, and the separation process can be easily automated. (go.jp)
For exosomes to be manufactured for clinical use, an ideal clarification method would have to balance the key parameters: high yield, process time duration, and scalability. (pall.com)
The method is simple in process, high in operability, applicable to separators with radial outlets and wide in application range. (google.com)
Chute ore dressing belongs to bevel flow separation process. (miningpedia.net)
So we use this principle to process ore by adding media, to achieave the separation effect. (miningpedia.net)
The article proposes a discussion about playing in the process of elaborating the separation of the mother from the entrance of the child in Early Childhood Education. (bvsalud.org)
The results indicated that playing is an important resource, as it helped children in the elaboration the experience of separation that they experienced when entering the school space, and which were reproduced throughout the process of adaptation. (bvsalud.org)

Separation and recovery of iron and manganese from highiron manganese oxide ores by reduction roasting and magnetic separation technique. (prideofleyden.nl)

The second approach (Paper III) involves a selective cell lysis method where lysis buffer composition is optimized to selectively lyse blood cells in 5 min while maintaining bacterial viability. (kth.se)

What is the separation technique of distillation? (cafedumetro.fr)

The calculation method based on it eliminates some disadvantages of basic methods used in practice, as shown by comparisons between calculations made for simple hydraulic system under theoretical frictionless conditions using various DVCMs. (asme.org)

Isopycnic density-gradient ultracentrifugation is a density-based separation technique whereby a medium, such as sucrose, is added in layers of increasing density from top to bottom to cover the range of densities found in the sample. (pall.com)
The moving-zone gradient ultracentrifugation method has two gradient medium layers - a low density top layer, lower than all the solutes in the sample, and a very high-density bottom layer which acts as a cushion to protect against potential exosome pelleting. (pall.com)
The invention discloses a method for adjusting separation density of a dense medium cyclone and belongs to the technical field of magnetic separation. (google.com)
The present invention relates to a kind of method regulating dual medium cyclone dressing density, belong to magnetic separation technique field. (google.com)
The invention provides a kind of method regulating dual medium cyclone dressing density, radial magnetic field is set in cyclone, by regulating magnetic system to arrange and magnetic field intensity, regulating the sorting situation of cyclone. (google.com)
So the separation density can be accurately controlled, which can effectively separate minerals with small density difference. (miningpedia.net)
Given to the small density of air media, the separation effect is not high. (miningpedia.net)

The first commercial test in this area is marketed by Genomic Health and uses a CTC analysis method developed by Epic Sciences, which does not isolate CTCs, but rather spreads out all of the cells in a blood sample, and uses microscopy and imaging techniques to locate the CTCs and assess protein expression in their nuclei. (genomeweb.com)
On the other hand, recent rapid nucleic acid-based diagnostic methods are prone to false positives from human DNA mainly due to a lack of efficient sample preparation methods. (kth.se)
This Ph.D. work was aimed at the development of novel sample preparation methods for rapid and efficient separation and identification of bacteria from blood for sepsis diagnostics. (kth.se)
In electrospray ionization (ESI) detectors, nitrogen is used as a nebulizer gas to produce a mist of charged droplets which results in the separation of the solvent and the ionized sample. (peakscientific.com)
New or updated method in a collection of methods to sample and analyze workplace contaminants. (cdc.gov)
Using these methods, extensive compositional data were obtained on a sample of Prudhoe Bay, Alaska , crude oil. (cdc.gov)

This paper aims to challenge the analytical potential and advantages of cheaper and equally reliable alternatives that couple the well-established extraction procedures with common spectrometric methods. (muni.cz)
Equally important, the separation allows for the definition of both terms to be embedded within the question, thereby broadening respondents' interpretation of the terms and decreasing the possibility of false negative reporting. (cdc.gov)

Most significantly, these methods are not scalable for manufacturing. (pall.com)

We propose an original method using a watermarking technique to imperceptibly embed this information about the source signals into the mix signal. (sciweavers.org)

Common culture-based methods fail in fast bacteria determination as it takes up to 24-72 hr. (kth.se)

The course covers the basics, principles and limitations for the most common methods for multivariate statistics (analysis of variance, principal component analysis and partial least squares regression), experimental design (super-saturated and factorial designs) and method validation with a focus on practical use. (lu.se)

Where a SID, with limited designed separation assurance is used, it is important that air traffic controllers regularly monitor individual aircraft performance rather than rely on expected flight characteristics. (atsb.gov.au)

In order to recover iron from red mud, the technology of sodium salt roasting and magnetic separation was developed. (prideofleyden.nl)

Models based on microphase separation seem particularly well-suited to explain the internal organization of euchromatin, but their applicability to this organization has not been tested. (nature.com)

Martin , C. S. , 1983, " Experimental Investigation of Column Separation With Rapid Closure of Downstream Valve ," Proceedings of the Fourth International Conference on Pressure Surges , BHRA, Bath, UK, pp. (asme.org)

The method might be less likely to compete as directly with label-free CTC capture methods - like Vortex Biosciences' VTX-1 , Angle's Parsortix , or the CTC iChip - which rely on fluidic separation and concentration of CTCs based on their size, shape, or malleability, pulling out a larger population of cells for analysis, regardless of whether they carry a particular genomic target. (genomeweb.com)

Our performance is really good relative to marker-dependent methods," she said. (genomeweb.com)

Anatomy1

Organisms1

Diseases1

Chemicals and Drugs4

Analytical, Diagnostic and Therapeutic Techniques and Equipment28

Psychiatry and Psychology3

Phenomena and Processes12

Disciplines and Occupations1

Anthropology, Education, Sociology and Social Phenomena1

Information Science2

Health Care5

Analytical methods7

Purification5

Chemistry2

Gravity separation9

Magnetism3

Source Separation3

19981

Chromatographic4

Particles9

Characterization2

Liquid chromatography4

Chromatography5

Phase separation3

Mixtures4

Particle size1

PreConcentration1

Mixture6

Researchers2

20231

Differences3

Centrifugation4

Efficiency3

Parental separation12

20191

20181

Effective separation2

Ions2

Purity4

Adsorption2

Media separation2

Separates1

NIOSH3

Applications8

Microfluidics1

Detection3

Process7

Ores1

Selective1

Distillation1

Disadvantages1

Density7

Sample6

Equally2

Significantly1

Technique1

Determination1

Regression1

Characteristics1

Technology1

Explain1

Investigation1

Rely1

Performance1