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卷烟主流烟气总粒相物、气相物和烟灰中吡虫啉等5种农药残留及其转移行为

Chinese Journal of Pesticide Science(2017)

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Abstract
建立了超高效液相色谱-串联质谱(UPLC-MS/MS)测定主流烟气总粒相物、烟灰和气相物中吡虫啉、二甲戊灵、仲丁灵、甲霜灵和腈菌唑含量的方法.样品经乙腈提取,分散固相萃取后进行UPLC-MS/MS分析.各基质中5种农药的检出限为0.196~10.7 ng/cig,平均添加回收率为71%~118%,RSD为2.2%~12%.应用该方法研究了标准卷烟添加5种农药标准品和自然高残留样品中5种农药的烟气转移率.结果表明:标准卷烟添加5种农药标准品的主流烟气总粒相物中吡虫啉转移率相对较低(<7%),而其余4种农药转移率均大于30%;烟灰中未检出吡虫啉,其余4种农药转移率仅为0.1%~0.2%;此外,在主流烟气气相物中未检出目标农药.自然高残留卷烟样品主流烟气总粒相物中仅检出腈菌唑,且其转移率(2.6%~3.1%)远低于添加标准品的卷烟.
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Key words
ultra performance liquid chromatography-tandem mass spectrometry,cigarette,pesticide,residue,transfer behavior
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