气相色谱-质谱联用法测定烟草中尼古丁的含量

Chinese Journal of Pharmaceutical Analysis(2009)

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Abstract
目的:使用气相色谱-质谱联用仪,采用选择离子检测法测定烟草中尼古丁的含量。方法:采用DB-5MS色谱柱(30m×0.32mm×0.25μm),氦气为载气,60~280℃程序升温;质谱为检测器,选择性检测m/z84的离子;样品采用乙酸乙酯超声提取,外标法计算尼古丁的含量。结果:尼古丁浓度在0.01~10mg·mL-1范围内与峰面积线性关系良好(r=0.9998,n=6);平均回收率(n=5)为98.3%,RSD为2.0%;检测限为10pg。结论:本法简便、快速,灵敏度高,结果准确可靠,可用于烟草中尼古丁含量的控制。
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Key words
nicotine,GC-MS,tobacco
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