منابع مشابه
Gas chromatographic analysis of conjugated linoleic acids
The aim was to determine the conjugated linoleic acids in beef with GC-FID. Perfect separation of all of the isomers cannot be achieved, though conjugated linoleic acid isomers proved to be separable from the other fatty acids that are present in beef in a significant amount related to conjugated linoleic acids. Lipid-extraction was carried out with n-hexane/i-propanol, giving 6.8 percent highe...
متن کاملGas-liquid chromatographic analysis of urinary steroids.
A method for gas-liquid chromatographic separation and quantitation of urinary steroid metabolites is described. A normal reference range has been established and classic examples of urinary steroid profiles of the major steroid disorders are given.
متن کاملGas-liquid chromatographic determination
A method for the determination of total bile acids in human feces that is suitable for routine application is described and discussed. Bile acids are extracted from freezedried feces with acetic acid and toluene, in the presence of the i?ternal standard 23-nordeoxycholic acid. After saponification of the extract, bile acids and the internal standard are methylated and converted by mild chromic ...
متن کاملThe unreliability of direct gas chromatographic analysis of polychlorinated biphenyls.
detected in these blank determinations that we were not certain whether it came from the Soluene or other sources. You may note that the blood of control rats which was analyzed with the use of Soluene did not contain detectable amounts of asbestos and zero fibers per gram was reported. We have since repeated this work (as yet unpublished) in an experiment in which asbestos was fed to rats and ...
متن کاملA Procedure for the Sensory Analysis of Gas Chromatographic Effluents
A method ispresentedfor determining those volatile components of Jbods that have flavour significance. The method leads to quantitative flavour specifications called charm that can be displayed graphically. The procedure is baaed upon the relative odour detection thresholds of volatile compounds of known gas chromatographic retention indices.
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1963
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.84.5_409