热裂解色谱/质谱法研究茶叶的指纹图谱  

STUDY ON THE FINGERPRINT OF TE BY PYROLYSIS CHROMATOGRAPHY/MAS SEPECTROMETRY

作　　者：袁敏[1] 张铭光[2] 袁鹏[3] 朱兰[1] 钟汉佐[1] 

机构地区：[1]华南师范大学化学与环境学院 [2]生命科学学院,广东广州510631 [3]华南理工大学自动化科学与工程学院,广东广州510640

出　　处：《华南师范大学学报（自然科学版）》2006年第1期60-64,共5页Journal of South China Normal University(Natural Science Edition)

摘　　要：采用热裂解色谱/质谱法研究茶叶的指纹图谱,考察了热解温度、热解时间对指纹图谱的影响.并采用模糊聚类数据处理手段对图谱进行综合分析,结果表明:同一等级的茶叶相关系数>0.900,不同等级的茶叶相关系数<0.820.为茶叶的品质鉴定建立了一个快速、简便、科学的测试手段.该方法准确、灵敏度高、谱图信息丰富以及重现性好,使茶叶质量控制又迈进了新的一步.The fingerprint for the characterization of tea has been developed by pyrolysis chromatographic/mass sepectrometry. The effects of pyrolysis temperature and pyrolysis time on the fingerprint has been studied in this paper. According to the relative rented times and the relative area resultants in chromatographic fingerprint, a comparison is conducted with fuzzy cluster analysis. The result shows that the correlation coefficient of the same grade tea is more then 0. 900 and that of the different grade tea is less than 0. 820. Pyrolysis Chromatography/Mass Sepectrometry is a fast, simple and scientific determination method for the identify of quality of tea. The method is accurate , delicate and abundant in information. It has a good reproducibility and makes a great progress in the quality control of tea.

关 键 词：茶叶 指纹图谱 热裂解色谱/质谱 模糊聚类 

分 类 号：O65[理学—分析化学]