Welcome to Journal of Tea Science,Today is

Journal of Tea Science ›› 2014, Vol. 34 ›› Issue (3): 261-270.doi: 10.13305/j.cnki.jts.2014.03.008

Previous Articles     Next Articles

Application of Retention Index on Volatile Compound Identification of Tea and Development of Retention Index Database

LIN Jie1,2, CHEN Ying3, SHI Yuanxu1, WANG Xiaochang1,*   

  1. 1. Institute of Tea Science, Zhejiang University, Hangzhou 310058, China;
    2. The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China;
    3. Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision, Hangzhou 310019, China
  • Received:2013-06-18 Revised:2013-09-02 Online:2014-06-15 Published:2019-09-03

Abstract: Standard mixture of n-alkanes and n-alkanes in samples were applied respectively to determine the retention index (RI) of tea volatiles. The linear correlation coefficients of retention time with carbon number for the two methods were both above 0.99, indicating quite good reliability for calculating RI. With the applying of RI, the correct identification rate of the volatiles increased from 46.67% to 74.67%. Meanwhile, RI enabled effective identification of the isomers contained in tea volatiles, and greatly increased the identification accuracy. Data in relevant literatures were summarized to construct a RI database for HP-innowax column. The RI database could also improve the efficiency of compound identification using HP-innowax column.

Key words: retention index, tea, volatiles, HS-SPME, retention index database

CLC Number: