Microdetermination of <I>p</I>-coumaric acid in water by gas chromatography
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منابع مشابه
Analysis of fatty acid composition of Withania coagulans fruits by gas chromatography/mass spectrometry
Background and objectives: Withania coagulans Dunal (Solanaceae) fruits are recommended to treat asthma, dyspepsia, biliousness, flatulent colic, liver complaints, intestinal infections, strangury, wounds and as diuretic, emetic and sedative agent in Indian traditional system of medicine. The objective of this study was to describe the systematic fatty acid composition...
متن کاملMicrodetermination of cholesterol and phospholipid in cerebrospinal fluid and serum by silicic acid column chromatography.
A method is presented for the determination of cholesterol and phospholipid, which requires 5 I . of human serum or 1-2 ml. of cerebrospinal fluids. With this method 5-100 zg. of cholesterol and phospholipid can be separated by a modified silicic acid column after elution of the mixture with 1 ml. of chloroform and 3 ml. of methanol. Recovery for 24.6 sg. of cholesterol and 30.5 g. of phospholi...
متن کاملA rapid and sensitive analysis of diphenylarsinic acid in water by gas chromatography/mass spectrometry.
A rapid and sensitive analytical method using pentafluorothiophenol (PFTP) derivatization was applied to detect diphenylarsinic acid (DPAA) in water. In this study, the optimum derivatization conditions, such as acid concentration, reaction time and reaction temperature, were investigated to develop a suitable procedure for DPAA determination. After extracting the derivatives into benzene, the ...
متن کاملVolatile Organic Compounds in Water: Gas Chromatography
chemistry 6: 599}626. Bhushan R and Ali I (1987) TLC resolution of constituents of the vitamin B complex. Archives of Pharmacology 320: 1186}1187. DeLeenheer WL and DeRuyter G (1985) Modern Chromatographic Analysis of the Vitamins. New York: Marcel Dekker. Diaz A, Paniagua A and Sanchez F (1993) Thin-layer chromatography and Rberoptic Suorometric quantitation of thiamine, riboSavin and niacin. ...
متن کاملDetermination of valproic acid in human plasma using dispersive liquid-liquid microextraction followed by gas chromatography-flame ionization detection
Objective(s): Dispersive liquid-liquid microextraction coupled with gas chromatography (GC)-flame ionization detector was developed for the determination of valproic acid (VPA) in human plasma. Materials and Methods: Using a syringe, a mixture of suitable extraction solvent (40 µl chloroform) and disperser (1 ml acetone) was quickly added to 10 ml of diluted plasma sample containing VPA (pH, 1....
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1974
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.23.1211