Results 21 to 30 of about 1,057,049 (232)

Gas-liquid partition chromatography: the separation and micro-estimation of volatile fatty acids from formic acid to dodecanoic acid

open access: yes, 1952
Industry has long used charcoal or other solid absorbents in columns for cleaning gas streams or for solvent recovery, and more recently Turner (1943), Claesson (1946), Glueckauf, Barker & Kitt (1949), Phillips (1949) and Turkel'taub (1950) have used ...
A. James, A. Martin
semanticscholar   +1 more source

Measurements of Protein-Protein Interactions by Size Exclusion Chromatography [PDF]

open access: yes, 2003
A method is presented for determining second virial coefficients B_2 of protein solutions from retention time measurements in size exclusion chromatography (SEC). We determine B_2 by analyzing the concentration dependance of the chromatographic partition coefficient.
arxiv   +1 more source

Spin projection chromatography [PDF]

open access: yes, 2003
We formulate the many-body spin dynamics at high temperature within the non-equilibrium Keldysh formalism. For the simplest XY interaction, analytical expressions in terms of the one particle solutions are obtained for linear and ring configurations. For small rings of even spin number, the group velocities of excitations depend on the parity of the ...
arxiv   +1 more source

Rapid identification of Candida albicans septicemia in man by gas-liquid chromatography.

open access: yesJournal of Clinical Investigation, 1974
Gas-liquid chromatography (GLC) was used to study normal serum and serum from patients with septicemia caused by a variety of bacteria and by Candida albicans. The gas chromatograms of seven sera from six patients with septicemia due to C.
G. G. Miller   +3 more
semanticscholar   +1 more source

BARCHAN: Blob Alignment for Robust CHromatographic ANalysis [PDF]

open access: yesJournal of Chromatography A, Volume 1484, February 2017, Pages 65-72, 2017
Comprehensive Two dimensional gas chromatography (GCxGC) plays a central role into the elucidation of complex samples. The automation of the identification of peak areas is of prime interest to obtain a fast and repeatable analysis of chromatograms.
arxiv   +1 more source

Rapid diagnosis of anaerobic infections by direct gas-liquid chromatography of clinical speciments.

open access: yesJournal of Clinical Investigation, 1976
Current methods to isolate and identify anaerobic bacteria are laborious and time consuming. It was postulated that the short-chain fatty acids (SCFA) produced by these organisms might serve as microbial markers in clinical material.
S. Gorbach   +4 more
semanticscholar   +1 more source

QUANTITATIVE FATTY ACID ANALYSIS OF MILK FAT BY GAS-LIQUID CHROMATOGRAPHY

open access: yes, 1961
Summary A procedure was developed for quantitative analysis of the fatty acids of milk fat. Methyl esters of the acids were prepared by methanolysis, extracted with ethyl chloride, and separated by gas-liquid chromatography (GLC), with diethylene glycol ...
L. Smith
semanticscholar   +1 more source

Gas–liquid chromatography of hyocholic acid

open access: yesJournal of Lipid Research, 1971
Partial derivatives of hyocholic acid were formed under the usual conditions for trifluoroacetylation of bile acids (trifluoroacetic anhydride, 35°C for 20 min).
Glen E. Mott   +2 more
doaj  

Stereospecific analysis of natural fats triacyl-sn-glycerols by means of enzymatic methods and high performance liquid chromatography

open access: yesGrasas y Aceites, 1995
This paper is a review in which difficulties for the determination of the fatty acid stereospecific positions in the triacyl-sn-glycerol molecules of natural fats are discussed.
V. Ruiz Gutiérrez, L. J. R. Barrón
doaj   +1 more source

Synthesis of endohedral iron-fullerenes by ion implantation [PDF]

open access: yes, 2015
In this paper, we discuss the results of our study of the synthesis of endohedral iron-fullerenes. A low energy Fe+ ion beam was irradiated to C60 thin film by using a deceleration system. Fe+-irradiated C60 thin film was analyzed by high performance liquid chromatography and laser desorption/ionization time-of-flight mass spectrometry. We investigated
arxiv   +1 more source

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