不同产地葱元素含量差异及Fisher判别分析  

The differences in element content and Fisher's discriminant analysis of Spring Onions from different regions in China

作　　者：马威[1] 张介眉[1] 凃欣[1] 滕晓丽[1] 朱旭[1] 朱浩[1] 关江锋[1] 郝建军[1] 张爱汉[1] 

机构地区：[1]武汉市中西医结合医院中心实验室,湖北武汉430022

出　　处：《湖北中医学院学报》2010年第3期25-28,共4页Journal of Hubei College of Traditional Chinese Medicine

基　　金：武汉科技局资助项目(武科技[2007]32号)

摘　　要：目的了解不同产地葱药材中各种元素含量的差异。方法将中国大陆地区划分为东北、华北、西北、西南、华南及长江中下游6个区域,实地采集各区域葱样83份;用ICP-MS电感耦合等离子体质谱仪,辅以原子荧光和原子吸收光谱仪,检测葱样本中16种元素含量;用SPSS软件进行方差分析,并建立Fisher判别方程。结果方差分析显示各地区葱样本中Pb、Fe、Se、Ni、Zn、Ge、Ca元素含量有显著差异(P<0.05);Fisher判别分析显示典型判别函数的特征值分别为1.648、0.874、0.463、0.174、0.116,Chi-square值为159.89,90.75,46.17,19.17,7.76,P<0.05,说明所建立的判别方程是有意义的,用所建立的判别函数回判,符合率为74.7%。结论不同产地葱元素含量不同,用所建立的Fisher判别方程能判定葱的产地。Objective To study the in elements in Spring Onions.Methods 83 Spring Onion samples were collected from 6 regions of China as：the Yangtze River area,North China,Northeast China,South China,Southwest,Northwest Territories.And determined the element content of the samples by ICP-MS,AFS and ASS.Variance analysis and Fisher＇s discriminant analysis by SPSS.Result Variance analysis showed that element content （Pb,Fe,Se,Ni,Zn,Ge,Ca） of Spring Onions from various regions was a significant difference（P 0.05）,and Fisher＇s discriminant analysis showed that eigenvalue of canonical discriminant functions were 1.648,0.874,0.463,0.174,0.116,and Chi-square were 159.89,90.75,46.17,19.17,7.76 （P 0.05）,the coincidence rate of back judge was 74.7%.Conclusions The element content of different regions is difference,and Fisher＇s discriminant function could determine the origin of Spring Onions based on elements.

关 键 词：葱 元素分布 FISHER判别分析 

分 类 号：S567.9[农业科学—中草药栽培]