Results 31 to 40 of about 1,057,049 (232)
Gas-liquid chromatography of trifluoroacetylated amino acid methyl esters.
Biochemical Journal, 1968 The gas—liquid chromatography of the trifluoroacetylated amino acid methyl ester derivatives is reported using the flame ionization detector. A mixed silicone stationary phase is shown to give isothermal separations, when the electron capture detector ...
A. Darbre, A. Islam
semanticscholar +1 more source
Analysis of α-lipoprotein cholesterol in 50 μl of plasma
Journal of Lipid Research, 1974 A micromethod for quantitation of α-lipoprotein cholesterol was devised for gas–liquid chromatography to minimize plasma sample size and facilitate lipid studies using capillary blood from children or small animals. α-Lipoprotein cholesterol was measured
R.F. Lutmer +7 more
doaj
Green Chemistry Letters and Reviews, 2021 Complementarity to liquid and gas chromatography, supercritical fluid chromatography (SFC) is becoming a mainstream separation technique. There is a global demand for more SFC users since ‘green’ method development has become a favorable target for ...
Tricia Naicker, Kamini Govender
doaj +1 more source
Analytical methods used to determine pesticide residues in tea: A systematic review
Applied Food Research, 2022 Tea is a worldwide consumed beverage that is known for its variety of flavors and aroma, in addition to its antioxidant, antimicrobial, anti-carcinogenic, and anti-inflammatory properties.
Areej Merhi +3 more
doaj
Development and validation of GLC/MS-procedure of doxylamine quantitative determination
Журнал органічної та фармацевтичної хімії, 2019 Doxylamine is a hypnotic medicine used for treatment of minor sleep disorders and is a frequent cause of poisoning. Aim. To develop GLC/MS-procedure of doxylamine quantification and carry out step-by-step validation of the developed procedure in the ...
L. Yu. Klimenko +3 more
doaj +1 more source
Duvatrienediols in cuticular wax of Burley tobacco leaves
Journal of Lipid Research, 1976 4, 8, 13-Duvatriene-1, 3-diol diastereoisomers have been identified in the cuticular wax of fresh Burley tobacco leaves. Their structures were determined by gas-liquid chromatography, mass spectrometry, and infrared and ultraviolet spectroscopy ...
S Y Chang, C Grunwald
doaj
Quantification of Captopril using Ultra High Performance Liquid Chromatography [PDF]
arXiv, 2021 We develop an efficient, sensitive, accurate, cost effective, and greener liquid chromatography method for the determination of a quantification method concerning Captopril in pharmaceutical dosage forms by using ultra high performance liquid chromatography (UHPLC) equipment.
arxiv
Gas-liquid chromatography of trimethylsilyl derivatives of abscisic Acid and other plant hormones.
Plant Physiology, 1968 This paper describes a new method for qualitative and quantitative assay of abscisic acid and other acidic plant hormones, such as indoleacetic acid and the gibberellins, by the gas-liquid chromatography of their trimethylsilyl derivatives.
L. A. Davis, D. E. Heinz, F. Addicott
semanticscholar +1 more source
HD gas analysis with Gas Chromatography and Quadrupole Mass Spectrometer [PDF]
, 2011 A gas analyzer system has been developed to analyze Hydrogen-Deuteride (HD) gas for producing frozen-spin polarized HD targets, which are used for hadron photoproduction experiments at SPring-8. Small amounts of ortho-H$_{2}$ and para-D$_{2}$ gas mixtures ($\sim$0.01%) in the purified HD gas are a key to realize a frozen-spin polarized target. In order
arxiv +1 more source
A Statistical Approach to Estimating Adsorption-Isotherm Parameters in Gradient-Elution Preparative Liquid Chromatography [PDF]
arXiv, 2022 Determining the adsorption isotherms is an issue of significant importance in preparative chromatography. A modern technique for estimating adsorption isotherms is to solve an inverse problem so that the simulated batch separation coincides with actual experimental results.
arxiv