QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留

引用本文: 王芳焕, 任翠娟, 马辉, 李萍, 郝俊虎, 陈林, 孙敏. QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留[J]. 色谱, 2019, 37(10): 1042-1047. doi: 10.3724/SP.J.1123.2019.04014 shu

Citation: WANG Fanghuan, REN Cuijuan, MA Hui, LI Ping, HAO Junhu, CHEN Lin, SUN Min. Determination of pesticide residues in wolfberry using QuEChERS-gas chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2019, 37(10): 1042-1047. doi: 10.3724/SP.J.1123.2019.04014 shu

QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留

银川海关技术中心, 宁夏银川 750002
基金项目:
宁夏回族自治区重点研发计划（2016KJHM131）.

摘要: 建立了QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留的分析方法。样品经乙腈提取，采用乙二胺-N-丙基硅烷（PSA）、C18和石墨化炭黑（GCB）3种吸附剂净化，在多反应监测模式（MRM）下进行检测，基质外标法定量。结果显示，检测项目在5~500 μg/L范围内呈良好线性（R²>0.99），在3个添加水平下测得回收率为71.5%~109.7%，相对标准偏差（RSD）为1.94%~9.87%（n=6）。该方法灵敏度高、净化效果好，可同时快速检测有机磷类、有机氯类农药。

关键词:

English

Determination of pesticide residues in wolfberry using QuEChERS-gas chromatography-tandem mass spectrometry

Yinchuan Customs Integrated Technology Center, Yinchuan 750002, China
Received Date: 07 April 2019
Fund Project:
Ningxia Hui Autonomous Region Key Research and Development Project (No. 2016KJHM131).

Abstract: A method based on QuEChERS-gas chromatography-tandem mass spectrometry (GC-MS/MS) was established for the determination of 20 pesticide residues in wolfberry. The samples were extracted with acetonitrile. The extract was purified with PSA (primary secondary amine), GCB (graphite carbon black) and C₁₈ to suppress the matrix in wolfberry. The analytical results showed that the calibration curves for the 20 pesticides obtained by GC-MS/MS were linear in the range of 5-500 μg/L, with the correlation coefficients higher than 0.99. The recoveries ranged from 70.02% to 110.78% with relative standard deviations (RSDs) ranging from 2.05% to 9.53%. This method has the advantages of being time-saving, convenient and sensitive. The proposed method can simultaneously detect organic phosphorus and organic chlorine pesticides residues with a good performance in terms of qualitative and quantitative detection.

Key words:

QuEChERS
/ gas-chromatography-tandem mass spectrometry (GC-MS/MS)
/ pesticide residues
/ wolfberry

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沈阳化工大学材料科学与工程学院沈阳 110142

QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留

English

Determination of pesticide residues in wolfberry using QuEChERS-gas chromatography-tandem mass spectrometry

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QuEChERS-气相色谱-串联质谱法测定枸杞中农药残留

English

Determination of pesticide residues in wolfberry using QuEChERS-gas chromatography-tandem mass spectrometry

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

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