Geographical discrimination of Cyclocarya paliurus tea for origin traceability based on multielement analysis by ICP-OES and chemometrics multivariate  

作　　者：Na Guo Qi Wu Chen Shi Rengeng Shu 

机构地区：[1]School of Pharmacy,Jiangxi University of Chinese Medicine,Nanchang 330004,China

出　　处：《Chinese Herbal Medicines》2023年第1期63-68,共6页中草药（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.81360631);Project of the Key Research and Development Program for Jiangxi Province(No.20203BBGL73218)。

摘　　要：Objective: This paper focused on the geographical discrimination of Cyclocarya paliurus tea for origin traceability based on multielement analysis by ICP-OES and chemometrics multivariate.Methods: In this study, eleven trace element concentrations were determined by ICP-OES and processed by multivariate statistical analysis.Results: Based on ANOVA, the mean concentrations of 10 elements except Co differed significantly among six origins. Pearson’s correlation analysis showed that 11 pairs of elements have a positive significant correlation and 12 pairs have a negative significant correlation. The geographical origins were effectively differentiated using the eleven elements combined with PCA. And the S-LDA model offered a 100%differentiation rate.Conclusion: The overall results suggested that the combination of multielement analysis by ICP-OES and chemometrics multivariate could trace the geographical origins of tea. And the paper can provide reference for quality control and quality evaluation of C. paliurus in the future.

关 键 词：chemometrics multivariate Cyclocarya paliurus(Batal.)lljinskaja geographic origin multielement analysis ICP-OES 

分 类 号：R284[医药卫生—中药学]