Simultaneous Determination of 40 Organophosphorus Pesticides in Tea by Online GPC/GC-MS/MS with Multi-walled Carbon Nanotubes as Dispersive Solid Phase Extraction Sorbent

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Simultaneous Determination of 40 Organophosphorus Pesticides in Tea by Online GPC/GC-MS/MS with Multi-walled Carbon Nanotubes as Dispersive Solid Phase Extraction Sorbent

- Simultaneous Determination of 40 Organophosphorus Pesticides in Tea by Online GPC/GC-MS/MS with Multi-walled Carbon Nanotubes as Dispersive Solid Phase Extraction Sorbent
- Vol. 37, Issue 4, Pages: 404-410(2018)
- 作者机构：
  
  浙江省食品药品检验研究院
- 作者简介：
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Simultaneous Determination of 40 Organophosphorus Pesticides in Tea by Online GPC/GC-MS/MS with Multi-walled Carbon Nanotubes as Dispersive Solid Phase Extraction Sorbent. [J]. 37(4):404-410(2018)
DOI：

Simultaneous Determination of 40 Organophosphorus Pesticides in Tea by Online GPC/GC-MS/MS with Multi-walled Carbon Nanotubes as Dispersive Solid Phase Extraction Sorbent. [J]. 37(4):404-410(2018) DOI：

摘要

建立了一种以多壁碳纳米管(MWCNTs)为分散固相萃取吸附剂的前处理净化技术，结合在线凝胶色谱/气相色谱-三重四极杆串联质谱(GPC/GC-MS/MS)同时测定茶叶中40种有机磷农药残留的方法。茶叶用乙腈提取，经MWCNTs净化后进行GPC/GC-MS/MS分析。利用该方法对空白茶叶样品进行20、50、150 μg/kg 3个不同浓度水平的加标回收试验，平均回收率为84.2%~109.9%，相对标准偏差(RSD，n=6)不大于8.9%，方法检出限为0.5~4.6 μg/kg。该方法快速简便、灵敏度高、成本低，可以满足多种农药残留同时分析的要求。

Abstract

A method was developed for the determination of 40 organohosphorus pesticides in tea by online gel permeation chromatography/gas chromatography-tandem mass spectrometry(GPC/GC-MS/MS) using multi-walled carbon nanotubes(MWCNTs) as dispersive solid phase extraction(DSPE) sorbent in sample pretreatment.Pesticides residues in tea were extracted with acetonitrile,and cleaned up with MWCNTs.The target compounds were analyzed by the online GPC/GC-MS/MS.The recoveries at three spiked concentration levels of 20,50,150 μg/kg were in the range of 84.2%-109.9% with relative standard deviations(RSDs,n=6) not more than 8.9%.The limits of detection(LODs) were in the range of 0.5-4.6 μg/kg.This method is simple,rapid and sensitive,and could meet the requirements for pesticides analysis.

关键词

多壁碳纳米管在线凝胶色谱/气相色谱-三重四极杆串联质谱有机磷茶叶

Keywords

multi-walled carbon nanotubes(MWCNTs)online gel permeation chromatography/gas chromatography-tandem mass spectrometer(GPC/GC-MS/MS)organophosphorustea

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Related Institution

College of Chemical Engineering，Zhejiang University of Technology

Tea Research Institute，Chinese Academy of Agriculture Sciences

Shanghai Municipal Center for Disease Control & Prevention

Chenggu Food and Drug Inspection and Testing Center

Hanzhong Food and Drug Supervision，Inspection and Testing Center，Shaanxi Tea Products Quality Supervision and Inspection Center

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