多壁碳纳米管分散固相萃取结合在线GPC/GC-MS/MS技术同时检测茶叶中40种有机磷农药

朱炳祺; 金绍强; 田春霞; 胡帆; 徐潇颖; 罗金文

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多壁碳纳米管分散固相萃取结合在线GPC/GC-MS/MS技术同时检测茶叶中40种有机磷农药

- 多壁碳纳米管分散固相萃取结合在线GPC/GC-MS/MS技术同时检测茶叶中40种有机磷农药
- 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
- 分析测试学报 2018年37卷第4期页码：404-410
- 作者机构：
  
  浙江省食品药品检验研究院
- 作者简介：
- 基金信息：
  
  浙江省科技计划公益技术应用研究项目(2017C37013)
- DOI：
  中图分类号：
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朱炳祺, 金绍强, 田春霞, 等. 多壁碳纳米管分散固相萃取结合在线GPC/GC-MS/MS技术同时检测茶叶中40种有机磷农药[J]. 分析测试学报, 2018,37(4):404-410.

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]. 2018,37(4):404-410.
朱炳祺, 金绍强, 田春霞, 等. 多壁碳纳米管分散固相萃取结合在线GPC/GC-MS/MS技术同时检测茶叶中40种有机磷农药[J]. 分析测试学报, 2018,37(4):404-410. 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]. 2018,37(4):404-410. 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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