液相色谱-串联质谱法测定烟叶中的玉米赤霉烯酮

Kang WEI,Tian-hui HUANG,Sen BAI,Jian-meng LIAO,Jia-feng BAI,Jiang-feng HUANG, Yun XUE

Contemporary Chemical Industry（2019）

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Abstract

建立了液相色谱-串联质谱法测定烟叶中玉米赤霉烯酮的方法.样品经无水乙醚提取,正己烷净化,采用多反应检测扫描方式(MRM),ESI负离子模式,确定了玉米赤霉烯酮的分子离子峰为(m/z)317.30,定量离子为(m/z) 175.15,定性离子为(m/z) 131.10,273.25.玉米赤霉烯酮在0～10 ng/mL范围内线性关系良好(R＞0.999),方法检出限为0.42μg/kg;平均回收率为96.4％～101.1％,日内精密度RSD为2.5％,日间精密度RSD为9.05％.采用该方法满足烟叶中玉米赤霉烯酮的低含量检测.

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