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超高效液相色谱-串联质谱法测定甜菜中除草剂残留含量 被引量:7

Determination of Herbicide Residue in Sugarbeet by Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry
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摘要 为了建立甜菜中3种除草剂的定量分析方法,采用超高效液相色谱-电喷雾串联四极杆质谱仪,在多反应监测正负离子扫描模式下对样品进行添加回收率试验。样品经甲醇配合快速溶剂萃取仪提取后配合固相萃取前处理小柱,甲醇、丙酮、二氯甲烷各2 m L为洗脱溶剂净化,外标法定量。结果表明:加标水平分别为50、20、10μg/kg时,回收率为65.81%~100.36%,相对标准偏差(RSD)为1.4%~6.55%,方法的定量限在0.6~2.5μg/kg之间,该方法具有快速、简便、灵敏度较高的特点,能同时满足甜菜中3种农药残留分析的要求。 The paper aims to establish a quantitative analysis method for detecting three herbicides' residues in sugarbeet. The authors performed recovery tests by ultra high performance liquid chromatography-tandem mass spectrometry under multiple reaction monitoring mode. The sample was extracted with methanol by accelerated solvent extraction(ASE), and purified by solid phase extraction with methanol, acetone and dichloromethane, 2 mL each, and quantified by the external standard method. The results showed that: the recoveries at three spiked concentration levels of 50, 20, 10 μg/kg ranged from 65.81% to 100.36%, and RSD was between 1.4% and 6.55%, the limits of quantification of this method were in the range of 0.6-2.5 μg/kg.The method is not only fast and simple, but also high sensitive, can satisfy the detection requirement for the three herbicides' residues in sugarbeet simultaneously.
出处 《中国农学通报》 2017年第36期152-156,共5页 Chinese Agricultural Science Bulletin
基金 国家甜菜现代产业技术体系建设项目"质量安全与营养品质评价"(CARS-170503) 国家农产品质量安全风险评估专项经费"糖料食用特色农产品质量安全风险因子摸底排查与特质性营养品质评价"(GJFP201701002)
关键词 液相色谱串联质谱 甜菜 快速溶剂萃取 除草剂 liquid chromatography tandem mass spectrometry sugarbeet accelerated solvent extraction herbicide
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