不同产地啤酒中无机元素的因子分析与聚类分析.doc

作者简介:周雅兰(1985- ),女,汉族,河北石家庄市人,在读硕士。
导师:张金生(1960-),男,教授,主要研究为方向现代分离与分析方法;。
* 通讯联系人。
不同产地啤酒中无机元素的因子分析与聚类分析
周雅兰1,张金生1,李丽华2*
(1,辽宁石油化工大学化学与材料科学学院,2,石油化工学院辽宁抚顺 113001)
摘要:利用常规消解样品结合微波等离子体炬原子发射光谱法(MPT-AES法)测定不同产地啤酒中的无机元素的含量,。因子分析的结果表明,%的贡献是来自于代表钴、锶、锰元素的因子1和代表锌、铁、铜元素的因子2,所以这些元素是啤酒中的特征元素。聚类分析的结果表明,9种产地的啤酒可以很好的彼此区别,并以此进行啤酒产地的归属辨别。
关键词:啤酒;原子发射;无机元素;因子分析;聚类分析
中图分类号: 文献标识码:A
Factor Analysis and Clustering Analysis of Trace Elements in beers in Different Producing Areas
ZHOU Ya-lan1, ZHAN Jin-sheng1,LI Li-hua2*
(1, School of Chemistry and Materials Science, Liaoning University of Petroleum & Chemical Technology, 2, School of Petrochemical Engineering, Fushun Liaoning 113001,China)
Abstract: The contents of mineral elements in beers by MPT-bine with traditional solution method were determined. The factor analysis and clustering analysis method in SPSS were applied to analyze the determination results. The results of factor analysis showed that the first and second factors accounted for above % of the tota1 variance,which indicated respectively that Co, Sr, Mn, Zn, Fe and Cu ,so those elements were the characteristic trace. The clustering analysis results showed that the nine beers could be distinguished clearly, and the characteristic elements were different in the different producing areas of beers, which can be used for the