Results 11 to 20 of about 1,057,049 (232)

Studies on bile acids: The microquantitative separation of cellular bile acids by gas-liquid chromatography. [PDF]

open access: greenBiochemical Journal, 1967
1. A method is described for the quantitative isolation of bile acids from cellular material. Homogenates of rat liver are freeze-dried and extracted exhaustively with 95% (v/v) ethanol containing 0.1% (v/v) of aq. ammonia (sp.gr.
T. Okishio, P. Nair, M. Gordon
semanticscholar   +2 more sources

Gas-liquid chromatography-mass spectrometry of synthetic ceramides

open access: hybridJournal of Lipid Research, 1969
Two series of ceramides with either sphingosine (sphing-4-enine) or sphinganine as base and with one of the saturated fatty acids C16, C18, C20, C22, C24, C26, or oleic acid were analyzed as the 1,3-di-O-trimethylsilyl ether derivatives by gas ...
Bengt Samuelsson, Karin Samuelsson
doaj   +2 more sources

Improved conditions for gas-liquid chromatography of triglycerides

open access: hybridJournal of Lipid Research, 1966
Improved conditions for gas-liquid chromatography of triglycerides are reported. Triglycerides of bovine colostrum and rapeseed oil have been analyzed under these conditions.
A. Kuksis, W.C. Breckenridge
doaj   +2 more sources

Analysis of milk fatty acids by gas-liquid chromatography.

open access: bronze, 1962
Summary A method for the analysis of milk fatty acids, employing separation of methyl and butyl esters by gas-liquid chromatography (GLC), has been developed.
G. Gander, R. G. Jensen, J. Sampugna
semanticscholar   +2 more sources

Chemical components analysis of handmade alcoholic beverages with special focus on psychoactive drugs as adulterants [PDF]

open access: yesMethodsX
Handmade alcoholic beverages are produced in clandestine laboratories. There are reports concerning the of counterfeit alcoholic beverages adulterated with psychoactive drugs.
Morvarid Sadat Miri   +3 more
doaj   +2 more sources

Bis(trimethylsilyl)acetamide in the silylation of lipolysis products for gas-liquid chromatography

open access: hybridJournal of Lipid Research, 1968
When bis(trimethylsilyl)acetamide is used to silylate lipolysates for gas-liquid chromatography, the pyridine solution containing the sample and silylating agent can be injected directly onto the column.
W.H. Tallent, R. Kleiman
doaj   +2 more sources

Stabilization of polyester stationary phases for gas-liquid chromatography

open access: hybridJournal of Lipid Research, 1960
Joseph Corse, Roy Teranishi
doaj   +2 more sources

Singular Shocks in a Chromatography Model [PDF]

open access: yesJournal of Mathematical Analysis and Applications, volume 439, issue 2, year 2016, pages 766-797, 2015
We consider a system of two equations that can be used to describe nonlinear chromatography and produce a coherent explanation and description of the unbounded solutions (singular shocks) that appear in M. Mazzotti's model. We use the methods of Geometric Singular Perturbation Theory, to show existence of a viscous solution to Dafermos-DiPerna ...
arxiv   +1 more source

Detection of Urethane in Non-alcoholic Fermented Food [PDF]

open access: yesE3S Web of Conferences, 2020
Among fermented foods, urethane often appears, which is a “2A” grade carcinogen. There are many types of fermented foods in my country, and the detection methods are not uniform enough, and no specific urethane detection standards have been formed.
Lihua Zhang
doaj   +1 more source

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