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液质联用法测定水产品中氯霉素残留

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Indexed by:期刊论文

Date of Publication:2012-09-21

Journal:精细与专用化学品

Volume:20

Issue:9

Page Number:35-37

ISSN No.:1008-1100

Key Words:氯霉素;水产品;液质联用仪

Abstract:本实验优化了液相色谱一串联质谱法测定水产品中氯霉素的检测方法。样品经提取、净化和浓缩后,用1.0mL50%的甲醇水溶液定容,采用液相色谱一三重四级杆串联质谱仪、多反应监测扫描模式(MRM)检测和同位素内标法定量。氯霉素检测的线性范围为0.20~20.0ng/mL,定量限为0.20μg/kg。在加标量为1.00μg/kg时,样品加标回收率平均为88.4%,相对标准偏差(RSD)小于20%,满足水产品中氯霉素残留的检测要求。

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