Development of a subcritical water extraction approach for trace analysis of chloramphenicol, thiamphenicol, florfenicol, and florfenicol amine in poultry tissues

文献类型： 外文期刊

第一作者： Xiao, Zhiming

作者： Xiao, Zhiming;Song, Rong;Rao, Zhenghua;Wei, Shulin;Jia, Zheng;Suo, Decheng;Fan, Xia

作者机构：

关键词： Subcritical water extraction;Chloramphenicol;Thiamphenicol;Florfenicol;Florfenicol amine;Poultry tissues

期刊名称：JOURNAL OF CHROMATOGRAPHY A （ 影响因子：4.759； 五年影响因子：4.302 ）

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年卷期：

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收录情况： SCI

摘要： Subcritical water extraction was investigated as a novel and alternative technology for the separation of trace amounts of chloramphenicol, thiamphenicol, florfenicol and its major metabolite florfenicol amine from poultry tissues and its results were compared with those of conventional shaking extraction, ultrasonic extraction, and pressurized liquid extraction. Decreasing the polarity of water by successively increasing the extraction temperature from 50 degrees C to 200 degrees C at the moderate pressure enabled selective, highly effective extractions to be performed. Rapid quantification of the target compounds was carried out by ultra-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS). The critical parameters of subcritical water extraction such as solvent modifier, temperature, pressure, extraction time, and static cycles were varied with control. The optimized extraction procedures using subcritical water as extraction solvent, were carried out on a pressurized liquid extractor operated at 150 degrees C and 100 bar, applying two static cycles for 3 min. Average recoveries of the four analytes from fortified samples ranged between 86.8% and 101.5%, with relative standard deviations (RSDs) lower than 7.7%. The limits of detection (LODs) and quantification (LOQs) for the target compounds were in the ranges of 0.03-0.5 mu g kg(-1) and 0.1-2.0 mu g kg(-1), respectively. The proposed method is fast, sensitive, water-based thus more environmental acceptable, making it a suitable replacement for conventional organic solvent extraction in veterinary drug residue analysis. (C) 2015 Elsevier B.V. All rights reserved.

分类号： O65

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