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Evaluation Of Beta-Agonists In Blood Meal: Validation Of Determination Method And Potential Pathway For Reentry Into The Environment

文献类型： 外文期刊

作者： Suo, DC; Wang, PL; Li, Y; Wang, RG; Fan, X; Su, XO

作者机构：

关键词： Beta-Agonist; Blood Meal; Potential Pathway; Environment

期刊名称： JOURNAL OF CHROMATOGRAPHY A

ISSN： 0021-9673

年卷期： 2020 年 1612 卷

页码：

收录情况： JCR（2021版） ; EI（2021版）

摘要： beta-agonists, which have been illegally used in animal production in some countries, can induce bioaccumulation when blood is converted by rendering into blood meal. Unfortunately, available data on this topic are scarce, which result in lack of risk assessment. Therefore, in this research, a method for simultaneous determination of 22 beta-agonists in blood meal by liquid chromatography coupled with tandem mass spectrometry using isotope dilution was developed. The recoveries of the developed method ranged from 68.6% to 118.8% with RSD at below 20%. the limit of detection (LOD) is blew 1 mu g/kg. The change in agonist form added and incurred blood into blood meal and long stability of beta-agonist in blood meal were studied. Then, we analyzed blood meal for 22 agonists using this method. The results suggest blood meal is a possible pathway for agonist reentry into animals. Potential risks of agonist residues in blood meal were examined. This study is the first to explore source of beta-agonist residues in blood meal, change in processing produce and stability in stored stage. (C) 2019 Elsevier B.V. All rights reserved.

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