| 基于HS-SPME/GC-MS与模式识别技术判别红茶产地 |
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| 引用本文： | 王倩,张立芹,叶能胜,段彩英,谷学新.基于HS-SPME/GC-MS与模式识别技术判别红茶产地[J].首都师范大学学报(自然科学版),2011,32(6):42-47. |
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| 作者姓名： | 王倩 张立芹 叶能胜 段彩英 谷学新 |
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| 作者单位： | 首都师范大学化学系,北京,100048 |
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| 基金项目： | 北京市教育委员会科技计划项目资助(KM201010028009); 北京市属高等学校人才强教计划资助项目(PHR201108147) |
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| 摘 要： | 本文建立一种基于顶空固相微萃取气质联用法(HS-SPME/GC-MS)分析红茶中挥发性组分,并结合模式识别方法实现了红茶的产地鉴别.采用HS-SPME法在100℃提取60 min,热解吸法直接进样气质联用仪(GC-MS)分析.根据挥发性组分的总离子流图,采用聚类分析、主成分分析和线性判别分析等模式识别技术实现了对不同产地红茶的判别.
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| 关 键 词： | 气质联用技术 模式识别技术 红茶 产地判别 |
Discrimination of Black Teas from Different Geographical Origins by SPME/GC-MS and Pattern Recognition Techniques |
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| Wang Qian,Zhang Liqin,Ye Nengsheng,Duan Caiying,Gu Xuexin.Discrimination of Black Teas from Different Geographical Origins by SPME/GC-MS and Pattern Recognition Techniques[J].Journal of Capital Normal University(Natural Science Edition),2011,32(6):42-47. |
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| Authors: | Wang Qian Zhang Liqin Ye Nengsheng Duan Caiying Gu Xuexin |
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| Institution: | Wang Qian Zhang Liqin Ye Nengsheng Duan Caiying Gu Xuexin(Department of Chemistry,Capital Normal University,Beijing 100048) |
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| Abstract: | A method was developed for the discrimination of geographical origins of black tea samples using SPME/GC-MS and pattern recognition techniques.The volatile components of black tea were extracted at 100 ℃ for 60 min by headspace solid-phase microextraction(HS-SPME),and then analyzed by gas chromatography-mass spectrometry(GC-MS).According to the GC profiling of volatile components,black tea samples from different geographical origins were successfully discriminated by three pattern recognition techniques(clustering analysis,principal component analysis and linear discriminant analysis). |
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| Keywords: | GC-MS pattern recognition techniques black tea geographical discrimination |
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