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  • Title: [Determination of quinoxyfen residue in foodstuffs of plant and animal origins by high performance liquid chromatography].
    Author: Yang F, Lu S, Chen X, Li J, Liu Z, Lin Y, Lan J, Chen G.
    Journal: Se Pu; 2008 Jul; 26(4):499-503. PubMed ID: 18959250.
    Abstract:
    A high performance liquid chromatographic (HPLC) method has been developed for the determination of quinoxyfen residue in various food matrixes including soybean, cauliflower, cherry, mushroom, wine, tea, honey, pork liver, chicken and eel. The analyte was extracted by ethyl acetate, and then purified with aminopropyl solid phase extraction (NH2 SPE) cartridge. Post-extraction gel permeation chromatography (GPC) was used for animal (except honey) and fishery products prior to NH2 SPE cleanup. The average recoveries and relative standard deviations (RSDs) for the analysis of all samples fortified in the range of 0.010 - 5.0 mg/kg were in the ranges of 82% - 96% and 3.2% - 11.8%, respectively. Good linearity was obtained in the concentration range from 0.050 to 50.0 mg/L. The limit of detection was 0.010 mg/kg. The proposed method was successfully applied to the analysis of quinoxyfen residue in various food samples.
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