Journal
JOURNAL OF ANALYTICAL CHEMISTRY
Volume 67, Issue 4, Pages 299-311Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S106193481204003X
Keywords
quercetin; determination; preconcentration
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State-of-the-art methods of the extraction, preconcentration, and determination of quercetin and other flavonoids are described. Different methods of sample preparation of real samples are compared, including solvent extraction from solid matrices and liquid-liquid, supercritical fluid, and solid-phase extraction. The following main determination methods are discussed: HPLC, thin-layer chromatography, capillary electrophoresis, spectrophotometry, luminescence, and electrochemical methods. Some examples of quercetin determination in biological fluids, food products, biologically active food supplements, pharmaceutical preparations, and plant samples are given.
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