微波消解-电感耦合等离子体发射光谱法测定银杏叶中无机元素的评价与分析

[Evaluation and analysis of inorganic elements in Ginkgo biloba leaves by microwave digestion-ICP-AES].

作者信息

Yao Xin, Zhou Gui-Sheng, Tang Yu-Ping, Shang Er-Xin, Su Shu-Lan, Qian Da-Wei, Duan Jin-Ao

机构信息

Nanjing University of Chinese Medicine, Nanjing, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2013 Mar;33(3):808-12.

PMID:23705459

Abstract

Abstract Inorganic elements were determined by ICP-AES using microwave digestion, and principal components analysis(PCA) was used for analysis. The result showed that ginkgo biloba leaves contained more than 22 inorganic elements, Fe, Zn, Cu, Mn, Cr, Co, Ni, Sr, B, Si and Ni were essential trace elements, and Ca, P, K% Na and Mg were essential macro elements. PCA with seven factors (F1, F2, F3, F4, F5, F6, F7) selected could be used to evaluate the quality of ginkgo biloba leaves. The function was following F=0.230 17F1+0.122 39F2+0.079 67F3+0.078 97F4+0.065 25F5+0.062 03F6+0.056 71F7. The samples from Taixing, Shijiazhuang and Taian was the top three which indicated the quality in those cultivation sources was better based on inorganic elements. All the results will provide good basis for comprehensive utilization of ginkgo biloba leaves, especially the leaves from fruit cultivars.

摘要

摘要采用微波消解-电感耦合等离子体发射光谱法（ICP-AES）测定无机元素，并进行主成分分析（PCA）。结果表明，银杏叶中含有22种以上无机元素，铁、锌、铜、锰、铬、钴、镍、锶、硼、硅和镍为必需微量元素，钙、磷、钾、钠和镁为必需常量元素。选用7个因子（F1、F2、F3、F4、F5、F6、F7）的主成分分析可用于评价银杏叶质量。其函数为F=0.230 17F1+0.122 39F2+0.079 67F3+0.078 97F4+0.065 25F5+0.062 03F6+0.056 71F7。来自泰兴、石家庄和泰安的样品位列前三，表明基于无机元素，这些产地的银杏叶质量较好。所有结果将为银杏叶的综合利用，尤其是果用品种的叶片综合利用提供良好依据。