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首页> 外文期刊>Chromatographia >Simultaneous determination of free and esterified fatty alcohols, phytosterols and solanesol in tobacco leaves by GC
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Simultaneous determination of free and esterified fatty alcohols, phytosterols and solanesol in tobacco leaves by GC

机译：气相色谱法同时测定烟叶中游离和酯化的脂肪醇，植物甾醇和茄尼醇

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摘要

A convenient gas chromatographic method equipped with flame ionization detection has been achieved for simultaneously determining six free and esterified fatty alcohols, three phytosterols, and solanesol in tobacco leaves. This analytic method consisted of direct alkaline hydrolysis, ultrasonic-assisted extraction and derivatization to trimethylsilyl ether derivatives. These three procedures did not require complicated and laborious preliminary purification steps of samples prior to GC, and the method was simple and convenient. The recovery of all target compounds was in the range of 85-105%, the relative standard deviations (RSDs) were less than 4%, and limits of detection (LOD) varied from 0.1-0.4 μg mL~(-1). The optimized methodology was successfully applied to determine free and esterified fatty alcohols, phytosterols and solanesol contents of different type tobacco samples.
机译：已经实现了一种配有火焰离子化检测的便捷气相色谱方法，用于同时测定烟叶中的六种游离和酯化的脂肪醇，三种植物甾醇和茄尼醇。该分析方法包括直接碱水解，超声辅助萃取和衍生化为三甲基甲硅烷基醚衍生物。这三个步骤不需要在GC之前进行复杂且费力的样品初步纯化步骤，并且该方法简单，方便。所有目标化合物的回收率均在85-105％之间，相对标准偏差（RSD）小于4％，检出限（LOD）在0.1-0.4μgmL〜（-1）之间变化。该优化方法已成功应用于确定不同类型烟草样品中游离和酯化的脂肪醇，植物甾醇和茄尼醇的含量。

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