不同产地和陈化年限普洱茶的表面增强拉曼光谱鉴别分析研究  

Identification of Pu'er Ripe Teas with Different Origins and Fermentation Years by Surface-Enhanced Raman Spectroscopy

作　　者：郑玲[1] 赵燕平[1] 冯亚东[2] 

机构地区：[1]华南师范大学生物光子学研究院光子中医实验室,国家中医药管理局中医药与光子学技术三级实验室,广东广州510631 [2]广东工业大学轻工化工学院,广东广州510006

出　　处：《光谱学与光谱分析》2013年第6期1575-1580,共6页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(81001546)资助

摘　　要：为了寻求一种快速鉴别分析不同产地和陈化年限的普洱熟茶科学的方法,本文采用表面增强拉曼散射光谱技术,在600～1 800cm-1的拉曼波段比较了云南三大普洱茶产地和四个不同陈化年限的普洱熟茶的拉曼光谱的异同点。结果:不同产地和陈化年限的普洱熟茶的拉曼光谱走势基本一致,但是由于不同产地和陈化年限的普洱熟茶之间的化学成分存在着差异,导致它们的拉曼光谱之间存在着明显的差别,利用这些差别可以快速、简便鉴别分析不同产地和陈化年限的普洱熟茶。In order to find a fast and scientific method to identify the Pu＇ er ripe teas with different origins and fermentation years, using the surface enhanced Raman scattering （SERS） technique was used to compare the similarities and differences between those teas with different origins and fermentation years in the Raman range of 600-1 800 cm^- 1. The results show that the trend of the SERS spectra are the same on the whole, but because of the diversity of different types of Pu＇er ripe teas, there are so many differences between the SERS spectra, and we can use the differences to analyze and identify Pu＇ er ripe teas with different origins and fermentation years.

关 键 词：表面增强拉曼散射 鉴别分析 普洱熟茶 产地 陈化年限 

分 类 号：O657.3[理学—分析化学]