江西茶鲜叶中重金属状况多变量分析

Multivariate Analysis of Heavy Metals in Fresh Tea Leaves from Jiangxi Province

DOI：10.3969/j.issn.1673-1689.2012.01.008

中文关键词: 茶鲜叶 重金属 多变量分析

英文关键词: fresh tea leaves heavy metals multivariate analysis

基金项目:国家自然科学基金项目(20462005)

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中文摘要:

对江西省5个茶区的88个茶鲜叶(新叶、老叶)样,以国标方法测定重金属Cu、Pb、Cd、As、Hg、Cr含量。结果显示,老叶、新叶和鲜叶聚类分析结果不完全相同,但均分为5组,无明显自然地域界限,6种重金属聚类组间差异显著(P

英文摘要:

Totally 88 fresh tea leaves samples(including new leaves and old leaves) from 5 producing districts in Jiangxi province were analyzed for the contents of Cu,Pb,Cd,As,Hg and Cr according to relevant national standards.The results reveal that cluster groups are not quite the same for new leaves,old leaves and fresh leaves although 5 groups were obtained each,which indicates that there are no clear natural separatrix,but there are significant differences within cluster groups for each heavy metal(P

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