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D. S. Korolev, V. G. Amelin, A. V. Tretyakov
Combination QuEChERS sample preparation and
dispersive liquid-liquid microextraction for determination in food products
pollutants estrogen character ây gas-liquid
chromatography
Abstract
A simple and an express method of simultaneous
determination of bisphenol A, diethylstilbestrol, and hexestrol, dienestrol in
canned foods, drinking water, alcoholic and non-alcoholic beverages by
gas-liquid chromatography with ECD and mass
spectrometry detectors. Target compounds from foods extracted with acetonitrile
method QuEChERS. Additional purification and concentration of the extract was
carried out dispersion liquid-liquid microextraction in carbon tetrachloride.
Translation of these compounds in the volatile derivatives carried trifluoroacetic
anhydride. Concentration range 0.5–100 mkg / kg. Duration analysis of 1–1.5
hours, the relative standard deviation of the analysis does not exceed 0.1.
Key words: bisphenol A, diethylstilbestrol,
hexestrol, dienestrol, gas-liquid chromatography, QuEChERS, dispersive
liquid-liquid microextraction.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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