烟草科技Issue(5)：47-56,10.DOI:10.16135/j.issn1002-0861.20150509
多壁碳纳米管分散固相萃取-LC-MS/MS法分析烟草中114种农药残留
Simultaneous Determination of 114 Pesticide Residues in Tobacco by Multi-walled Carbon Nanotube-based Dispersive Solid Phase Extraction and LC-MS/MS
余斐 1陈黎 1艾丹 2潘立宁 1胡斌 1刘惠民1
作者信息
- 1. 中国烟草总公司郑州烟草研究院，郑州高新技术产业开发区枫杨街2号 450001
- 2. 河南中烟工业有限责任公司黄金叶生产制造中心，郑州经济技术开发区第三大街9号 450016
- 折叠
摘要
Abstract
A method combining dispersive solid phase extraction (DSPE), wherein multi-walled carbon nanotubes (MWCNTs) were used as adsorption material, with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for simultaneously determining 114 pesticide residues in tobacco. The type and adding rate of MWCNTs were optimized by experiments, and the purification of samples was improved by QuEChERS method. The results showed that: 1) It was more efficient using 5 mg MWCNTs of above 50 nm in external diameter than using N-Propylethane-1,2-diamine (PSA) in sample purification. 2) The calibration curve presented good linearity (r2>0.999). The average recoveries at spiked levels of 0.02, 0.05 and 0.20 mg/kg ranged from 69% to 119% with the relative standard deviations of 1%-19%, and the LOQs of the method were in the range of 0.2-40.0 g/kg. The developed method is accurate, sensitive, convenient, and suitable.关键词
多壁碳纳米管/烟草/农药残留/液相色谱-串联质谱/QuEChERSKey words
Multi-walled carbon nanotube/Tobacco/Pesticide residue/LC-MS/MS/QuEChERS分类
农业科技引用本文复制引用
余斐,陈黎,艾丹,潘立宁,胡斌,刘惠民..多壁碳纳米管分散固相萃取-LC-MS/MS法分析烟草中114种农药残留[J].烟草科技,2015,(5):47-56,10.
