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  • column
  • Characterization of cis- and trans-octadecenoic acid positional isomers in edible fat and oil using gas chromatography-flame ionisation detector equipped with highly polar ionic liquid capillary column. (semanticscholar.org)
  • In this study, the characterisation of all cis- and trans-octadecenoic acid (C18:1) positional isomers in partially hydrogenated vegetable oil (PHVO) and milk fat, which contain several cis- and trans-C18:1 positional isomers, was achieved by gas chromatography-flame ionisation detector equipped with a highly polar ionic liquid capillary column (SLB-IL111). (semanticscholar.org)
  • Finally, in contrast to dialysis, gel filtration chromatography allows the contaminating material to be removed in a relatively small volume (and left on the column), an important feature when working with toxic or radioactive substances. (thermofisher.com)
  • A somewhat different approach is the set of techniques known as "planar" or "thin layer" chromatography (TLC), in which no column is used at all. (encyclopedia.com)
  • Displacement chromatography is a chromatography technique in which a sample is placed onto the head of the column and is then displaced by a solute that is more strongly sorbed than the components of the original mixture. (wikipedia.org)
  • In any form of chromatography, the rate at which the solute moves down the column is a direct reflection of the percentage of time the solute spends in the mobile phase. (wikipedia.org)
  • The mobile phase moves through the chromatography column (the stationary phase) where the sample interacts with the stationary phase and is separated. (wikipedia.org)
  • Microscale column chromatography The constriction toward the tip of the Pasteur pipettes may be plugged with a bit of tissue paper or cotton wool to filter off solids from small amounts of liquids. (wikipedia.org)
  • With a bit of skill, Pasteur pipettes may also be used for microscale column chromatography. (wikipedia.org)
  • The powder can also be introduced in a column chromatography setup and eluted with organic reactants in order to probe the reducing power. (wikipedia.org)
  • For gel filtration applications it is important to select a column size and format that is suitable for your sample. (wikipedia.org)
  • soluble
  • Soluble insulin is effective for a few hours if given intramuscularly and only for a few minutes if given intravenously. (hubpages.com)
  • The lower gel (separating gel) is poured first and covered with a few drops of a barely water-soluble alcohol (usually buffer-saturated butanol or isopropanol), which eliminates bubbles from the meniscus and protects the gel solution of the radical scavenger oxygen. (wikipedia.org)
  • Desalting
  • In desalting and buffer exchange, the macromolecular components of a sample are recovered in the buffer used to pre-equilibrate the gel-filtration matrix through which the sample is processed. (thermofisher.com)
  • Dialysis is useful for many of the same desalting and buffer exchange applications performed with gel filtration chromatography, as both methods are based on similar molecular weight cut-off limits. (wikipedia.org)
  • mixture
  • Analytical chromatography is done normally with smaller amounts of material and is for establishing the presence or measuring the relative proportions of analytes in a mixture. (wikipedia.org)
  • liquid
  • Highly effective bromate reduction by liquid phase catalytic hydrogenation over Pd catalysts supported on core-shell structured magnetites: Impact of shell properties. (bioportfolio.com)
  • Liquid catalytic hydrogenation is a green and cost-effective technique for the reductive removal of pollutants in water. (bioportfolio.com)
  • The purpose of this study is to determine if liquid supplemental melatonin is an effective treatment for children with autism who have sleep problems related to insomnia (difficulty fallin. (bioportfolio.com)
  • Porous silica Stöber materials have applications in catalysis and liquid chromatography due to their high surface area and their uniform, tunable, and highly ordered pore structures. (wikipedia.org)
  • By weight, gels are mostly liquid, yet they behave like solids due to a three-dimensional cross-linked network within the liquid. (wikipedia.org)
  • Gels consist of a solid three-dimensional network that spans the volume of a liquid medium and ensnares it through surface tension effects. (wikipedia.org)
  • Typically, 1-2% concentrations of 2-undecanone are found in dog and cat repellents in the form of a liquid, aerosol spray, or gel. (wikipedia.org)
  • substantially
  • Chromatography technique developed substantially as a result of the work of Archer John Porter Martin and Richard Laurence Millington Synge during the 1940s and 1950s, for which they won the 1952 Nobel Prize in Chemistry. (wikipedia.org)
  • Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady-state. (wikipedia.org)
  • carbohydrate
  • Lectins, having the properties of recognizing specific carbohydrate moieties of glycoconjugates, have become an effective tool for detection of new cancer biomarkers in complex bodily fluids and tissues. (peerj.com)
  • material
  • The resulting black powder material is an effective reducing agent and safe to handle as opposed to the pure metal. (wikipedia.org)
  • A gel is a solid jelly-like material that can have properties ranging from soft and weak to hard and tough. (wikipedia.org)
  • spherical
  • The Stöber process is a sol-gel approach to preparing monodisperse (uniform) spherical silica (SiO 2) materials that was developed by a team led by Werner Stöber and reported in 1968. (wikipedia.org)
  • form
  • In order to examine the efficacy of CPE in gel form, the gel was tested by 12 panelists using Visioscan. (empr.com)
  • The symmetrical, meso form of DTHFP was found to be significantly more effective in increasing the vinyl content of rubber than the racemic form. (wikipedia.org)
  • organic
  • Also, gel filtration is compatible with organic and other solvents that dissolve or otherwise compromise the integrity of dialysis membranes. (thermofisher.com)
  • gravity
  • There are a number of common formats for performing gel filtration for smaller (less than 4mL) volumes: Chromatography columns Gravity-flow columns Chromatography cartridges Centrifuge columns Centrifuge plates Gravity-flow, or drip, columns use head-pressure from a buffer-chase to push the sample through the gel filtration matrix. (wikipedia.org)
  • thermal
  • Highly effective thermal insulators known as aerogels can also be prepared using Stöber methods, and Stöber techniques have been applied to prepare non-silica aerogel systems. (wikipedia.org)
  • capillary
  • Since the gels are fragile and the probes are unable to enter the matrix, the RNA samples, now separated by size, are transferred to a nylon membrane through a capillary or vacuum blotting system. (wikipedia.org)
  • concentration
  • The amount of CPE that could be incorporated into the gel to reach an effective concentration while being nontoxic was calculated using the EC 50 value. (empr.com)
  • high
  • droplet-based microfluidics has become an important, cost-effective approach to DNA sequencing that provides high throughput and high accuracy sequencing information. (wikipedia.org)
  • polyethylene
  • Disposable diapers where they absorb urine, or in sanitary napkins Contact lenses (silicone hydrogels, polyacrylamides, polymacon) EEG and ECG medical electrodes using hydrogels composed of cross-linked polymers (polyethylene oxide, polyAMPS and polyvinylpyrrolidone) Water gel explosives Rectal drug delivery and diagnosis Encapsulation of quantum dots Breast implants Glue Granules for holding soil moisture in arid areas Dressings for healing of burn or other hard-to-heal wounds. (wikipedia.org)
  • methods
  • Compared to normal analyses methods, microanalysis: Requires less time for preparation Requires less sample and solvent and thus produces less waste and is more cost effective. (wikipedia.org)
  • variations
  • The FDA has approved four variations of the LAL test: gel-clot, turbidimetric, colorimetric, and chromogenic assay. (wikipedia.org)
  • In the 1990s, the Zenalb and the CSL Albumex processes were created which incorporated chromatography with a few variations. (wikipedia.org)
  • composition
  • Both by weight and volume, gels are mostly fluid in composition and thus exhibit densities similar to those of their constituent liquids. (wikipedia.org)
  • gene
  • Chitosan Grafted with Phosphorylcholine and Macrocyclic Polyamine as an Effective Gene Delivery Vector: Preparation, Characterization and In Vitro Transfection. (sigmaaldrich.com)
  • Herein, an effective gene delivery vector phosphorylcholine and macrocyclic polyamine grafted chitosan (PC-g(6)-Cs-g(2)-Cyclen) was developed. (sigmaaldrich.com)