Abstract：The present study is to investigate the feasibility of multi-elements analysis in determination of the geographical origin of sea cucumber Apostichopus japonicus, and to make choice of the effective tracers in sea cucumber Apostichopus japonicus geographical origin assessment. The content of the elements such as Al，V，Cr，Mn，Fe，Co，Ni，Cu，Zn，As，Se，Mo，Cd，Hg and Pb in sea cucumber Apostichopus japonicus samples from seven places of geographical origin were determined by means of ICP-MS. The results were used for the development of elements database. Cluster analysis(CA) and principal component analysis( PCA) were applied to differentiate the sea cucumber Apostichopus japonicus geographical origin. Three principal components which accounted for over 89% of the total variance were extracted from the standardized data. The results of Q-type cluster analysis showed that the 26 samples could be clustered reasonably into five groups, the classification results were significantly associated with the marine distribution of the sea cucumber Apostichopus japonicus samples. The CA and PCA were the effective methods for elements analysis of sea cucumber Apostichopus japonicus samples. The content of the mineral elements in sea cucumber Apostichopus japonicus samples was good chemical descriptors for differentiating their geographical origins.
刘小芳，薛长湖*，王玉明，李兆杰，薛 勇，徐 杰 . 刺参中无机元素的聚类分析和主成分分析[J]. 光谱学与光谱分析, 2011, 31(11): 3119-3122.
LIU Xiao-fang, XUE Chang-hu*, WANG Yu-ming, LI Zhao-jie, XUE Yong, XU Jie. Principal Component Analysis and Cluster Analysis of Inorganic Elements in Sea Cucumber Apostichopus Japonicus . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 3119-3122.
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