منابع مشابه
A gas-chromatographic micromethod for respiration studies on insects.
Respiration studies on insects are usually carried out by adapting direct or indirect standard manometric techniques (Umbreit, Burris & Stauffer, 1964). An alternative method, based on the use of an electrolytic respirometer, has been occasionally used (Hebrant, 1970). The respiration of Tenebrioides mauritanicus, a stored product beetle, has been monitored at reduced pressures by the use of a ...
متن کاملA gas chromatographic procedure for detection of pathological organic aciduria.
A number of nonamino organic acids associated with inborn errors of metabolism can be detected by gas chromatography. The organic acids are extracted into ethyl acetate and diethyl ether, the extracts combined, and the solvents evaporated under nitrogen. The residue is taken up in carbon disulfide and an aliquot chromatographed on 5% neopentyl glycol adipate to separate short-chain fatty acids ...
متن کاملGas 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 کاملEvaluation of common organic solvents for gas chromatographic analysis and stability of multiclass pesticide residues.
In this study, we evaluated the suitability of six common organic solvents for gas chromatographic (GC) analysis of pesticides. Three of these, acetone, acetonitrile (MeCN) and ethyl acetate (EtAc), represent extraction solvents commonly used in multiresidue methods for determination of pesticides in produce. The other three, isooctane, hexane and toluene, often serve as exchange solvents befor...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1962
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.82.5_659