摘要
建立了一种超高效液相色谱-电喷雾电离串联质谱法测定蔬菜、水果和土壤中的溴氰虫酰胺残留的方法。试样经QuEChERS方法前处理,超高效液相色谱-电喷雾电离串联质谱法测定,外标法定量。溴氰虫酰胺在0.5-200μg/L有良好的线性关系,相关系数r>0.999,检出限为0.15μg/kg,定量下限为0.5μg/kg,加标回收率在70%-110%,相对标准偏差小于5.0%,该方法简便、可靠、稳定,灵敏度高,可用于分析蔬菜、水果和土壤中溴氰虫酰胺的残留量。
The extraction and purification improvements of the QuEChERS method combining with LC-MS-MS was devel.oped for the determination of cyantraniliprole in vegetables,fruits and soils.The procedure was validated based on the SAN-CO European Guidelines with satisfactory spiked recovery of 70%-110%and measurement standard deviation less than 5%.The results showed that the calibration curves were linear in the range of 0.5μg/L-200μg/L with correlation coefi.cient more than 0.999.The limit of detection was 0.15μg/kg,and the limit of quantitation was 0.5μg/kg.The method was simple,rapid and accurate and could meet the requirement of the maximum residue limits for cyantraniliprole in vegeta.bles,fruits and soils.
作者
王旭强
孙文闪
冯均利
田富饶
Wang Xu-qiang;Sun Wen-shan;Feng Jun-Li;Tian Fu-rao(Yiwu Customs,Yiwu,Zhejiang 322000,China;Greentown Agricultural Testing Technology Co.Ltd,Hangzhou,Zhejiang 310000,China;Shenzhen Entry-Exit Inspect ion and Quarantine Bureau,Shenzhen,Guangdong 518067,China;Tongbiao Standard Technical Service(Changzhou)CO.,LTD.,Changzhou,Jiangsu 213000,China)
出处
《福建分析测试》
CAS
2019年第2期1-4,共4页
Fujian Analysis & Testing
