不同产地枸杞微量元素的因子分析与聚类分析.pdf

安徽农业科学11 ofAnhui 。,38(4):1839—1841 1 责任编辑朱新秀责任校对况玲玲
不同产地枸杞微量元素的因子分析与聚类分析
史秀红,常璇,袁毅,元永波,李淑娟,刘利军(宁夏大学化学化工学院,宁夏银J『I 750021)
摘要[目的]为各地枸杞资源的开发利用奠定基础。[方法]用原子吸收光谱仪测定不同产地枸杞中微量元素的含量,并运用 SPSS
17。0中的因子分析和聚类分析方法对测定结果进行分析比较。[结果]因子分析结果表明,总方差的50%以上的贡献来自第 1个和第2
个因子,所对应 cr、ca、cu、Fe和zn是枸杞的特征微量元素。聚类分析结果表明,样本的类归属情况为平罗、中宁、中卫枸杞为一类,青
海格尔木枸杞为一类,内蒙古拉特前旗和山东枸杞为一类,河北廊坊枸杞为一类。[结论]宁夏枸杞与其他产地枸杞有明显不同,可以根
据这种差别进行枸杞产地的归属判别。
关键词枸杞;原子吸收;微量元素;因子分析;聚类分析
中图分类号$ 9 文献标识码 A 文章编号 0517—6611(2010)04—01839一o3
Factor Analysis and Clustering Analysis of Trace Eiements in Wolfberry in Different ProducingAreas
SHI Engineering,Ningxia Xiu-hongandChemicalal Chemistryet of University,Yinchuan,Ningxia (School 750021)
Abstract 『Obiective]The research aimed to lay the foundation for the development and utilization of WOliberry resources in different areas. areas. different in resources WOliberry of utilization and development the for foundation the lay Abstract to aimed 『Obiective]Theresearch
『 Method 1 The content of trace elements in wolfberry in different areas was determined by using factor analysis and clustering analy. byusing determined wasclustering and areas analysis different factor in wolfberry in elements trace 『Method of The1 content
sis method SPSSand pare in weresis to appliedthedetermination Resuh first showedthe I that results analys