农药2024，Vol.63Issue(1) ：39-43.DOI:10.16820/j.nyzz.2024.0109

QuEChERS-气相色谱-三重四极杆串联质谱法测定黄瓜中苯醚菌酯和苯并烯氟菌唑残留量

Determination of ZJ0712 and benzovindiflupyr residues in cucumber by QuEChERS combined with gas chromatography-triple quadrupole tandem mass spectrometry

李映梅 周燕平 潘文丽 许小娥 杨成涛 熊彩云 熊斌
农药2024，Vol.63Issue(1) ：39-43.DOI:10.16820/j.nyzz.2024.0109
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QuEChERS-气相色谱-三重四极杆串联质谱法测定黄瓜中苯醚菌酯和苯并烯氟菌唑残留量

Determination of ZJ0712 and benzovindiflupyr residues in cucumber by QuEChERS combined with gas chromatography-triple quadrupole tandem mass spectrometry

李映梅 1周燕平 2潘文丽 1许小娥 1杨成涛 1熊彩云 1熊斌1
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作者信息

  • 1. 祥云县综合检验检测院,云南祥云 672100
  • 2. 祥云县综合检验检测院,云南祥云 672100;祥云县农业环境保护监测站,云南祥云 672100
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摘要

[目的]建立基于QuEChERS前处理技术结合气相色谱-三重四极杆串联质谱法检测黄瓜中2种杀菌剂(苯醚菌酯和苯并烯氟菌唑)残留量的分析方法.[方法]样品采用乙腈提取,QuEChERS净化,基质匹配曲线内标法定量,用DB-1701色谱柱分离.通过对质谱条件进行优化,确定2种杀菌剂的定量离子对、定性离子对和碰撞能.[结果]2种杀菌剂在5～500μg/L范围内都具有良好的线性关系,相关系数为0.9996、0.9979,平均回收率范围均处于73.7％～85.0％之间,相对标准偏差(RSDs,n=7)为5.7％～7.2％,定量限分别为0.002 02、0.001 76 mg/kg.在黄瓜基质中,2种目标物均表现为基质效应增强.[结论]方法具有快速、简便、灵敏等特点,适用于黄瓜中苯醚菌酯和苯并烯氟菌唑含量的测定.

Abstract

[Aims]This study aims to establish an analytical method for determination of ZJ0712 and benzovindiflupyr residues in cucumber by QuEChERS pretreatment combined with gas chromatography-triple quadrupole tandem mass spectrometry(GC-MS/MS).[Methods]The sample was extracted with acetonitrile,purified with a QuEChERS pretreatment,separated with DB-1701 chromatographic column,and quantitatively analyzed by matrix matching curve internal standard method.Massspectrum condition was optimized,including quantitative ion pairs,confirming ion pairs and collision energy.[Results]The two fungicides had good linear relationship in the range of 5-500 μg/L,with correlation coefficients of 0.9996 and 0.9979.The average recoveries were 73.7％to 85.0％,the relative standard deviations(RSDs,n=7)were 5.7％-7.2％,and the limits of quantitation of the two fungicides in the cucumber matrices were 0.002 02 and 0.001 76 mg/kg.The matrix effects of the two fungicides in the cucumber matrices were enhanced.[Conclusions]This method is rapid,simple and sensitive,and is suitable for simultaneously detection of residues of ZJ0712 and benzovindiflupyr in cucumbers.

关键词

气相色谱-三重四极杆串联质谱法/QuEChERS/苯醚菌酯/苯并烯氟菌唑/杀菌剂/黄瓜/基质效应

Key words

gas chromatography-triple quadrupole tandem mass spectrometry/QuEChERS/ZJ0712/benzovindiflupyr/fungicide/cucumber/matrix effect

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出版年

2024
农药
沈阳化工研究院有限公司

农药

CSTPCDCSCD北大核心
影响因子：0.665
ISSN：1006-0413
参考文献量35
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