摘要
目的:研究不同产地红曲微量元素的含量及分布特征.方法:以微量元素含量为指标,用SPSS主成分分析法和聚类分析法对红曲中的特征元素进行分析.结果:筛选出特征根累计贡献率83.260%的3个主成分;对选出的品种中主成分进行系统聚类分析,在离差平方和的水平上将其划分为3大类群.结论:为红曲药材道地性研究及鉴定提供了科学依据.
Objective： To study the contents and distribution of trace elements of Red Kojic on Chinese traditional medicine gathered from different habitats. Method： Principal components analysis and cluster analysis of SPSS are applied for the study of characteristic elements. Result： 4 principal components are obtained, which contributes variance over 90.072%. Based on these principal components, germplasms are clustered into 4 group switch Ward＇s method. Conclusion： The results provide scientific basis for research and identification of Red Kojic.
出处
《西南民族大学学报（自然科学版）》
CAS
2009年第4期789-792,共4页
Journal of Southwest Minzu University(Natural Science Edition)
关键词
红曲
微量元素
主成分分析
聚类分析
Red Kojic
trace element
principal component analysis
cluster analysis
