CAJ | 학술논문

采用微波等离子体炬原子发射光谱法（MPT-AES）测定了23种不同产地绿茶样品中的Mg、Al、Ca、M n、Fe、Cu、Zn、K、Na、Co和 Pb共11种元素的含量，并结合主成分分析和聚类分析进行茶叶产地的判别。研究结果表明：利用主成分分析和聚类分析对来自安徽、浙江、四川和江西的绿茶能够良好地区分，聚类效果明显，茶叶中矿质元素的含量可作为茶叶产地判别的测量指标之一。
채용미파등리자체거원자발사광보법（MPT-AES）측정료23충불동산지록다양품중적Mg、Al、Ca、M n、Fe、Cu、Zn、K、Na、Co화 Pb공11충원소적함량，병결합주성분분석화취류분석진행다협산지적판별。연구결과표명：이용주성분분석화취류분석대래자안휘、절강、사천화강서적록다능구량호지구분，취류효과명현，다협중광질원소적함량가작위다협산지판별적측량지표지일。
The contents of eleven mineral elements(Mg ,Al ,Ca ,Mn ,Fe ,Cu、Zn ,K ,Na ,Co and Pb) in twenty-three green tea samples from different areas were analyzed by microwave plasma torch atomic emission spectrometry (MPT-AES) .Then principal component analysis (PCA) and cluster analysis (CA) were applied to differentiate the geographical origins of these tea .The result indicated that This method can discriminate the geographical origins of these tea from AnHui、ZheJiang、SiChuan and JiangXi ,the classification performance was clearly ,the content of the mineral elements in teas were good chemical descriptors for differentiating their geographical origins .