【摘要】 以固态萃取搅拌棒为样品前处理技术,采用气相色谱/质谱联用法分析了烟草表香挥发性与半挥发性成分。对影响萃取效果的实验条件进行了考察,并采用正交实验法对影响热解吸的3个主要实验参数(热解吸温度、解吸时间和进样口冷聚焦温度)进行考察,得到优化的实验条件。结果表明,同一样品经6次测定,所得27个组分峰面积的相对标准偏差(RSD)平均值小于10%,实验证明该方法具有较高的准确度和较好的重现性,可用于烟草表香的快速分析测定,也可成为烟用香精香料质量控制的有效手段。更多还原

【Abstract】 The voliate and semi-voliate ingredients of tobacco spices was analysized using stir bar sorptive extraction coupled to gas chromatography-mass spectrometry.The experimental conditions affecting extraction effect was optimized,and three main factors affecting thermal desorption(desorption temperature,desorption time,cold hydrazine temperature) was also investigated by the method of orthogonal test.The average relative standard deviation(RSD)of peak areas of 27 components for 6 determinations was less than 10%.Therefore,this method can satisfy the requirements for the rapid analysis of tobacco spices and be also used to control the quality of tobacco flavor.更多还原