不同产地商陆中25种元素的波浪式分布

不同产地商陆中25种元素的波浪式分布

杜莹, 欧阳荔, 刘雅琼, 王京宇^*

北京大学公共卫生学院, 北京 100083

收稿日期:2004-10-08 修回日期:2004-11-10 出版日期:2004-12-15 发布日期:2004-12-15
通讯作者: 王京宇*

Wavy Distribution of Trace Elements in Phytolacca Samples from Different Areas

DU Ying, OUYANG Li, LIU Ya-qiong, WANG Jing-yu^*

School of Public Health, Peking University, Beijing 100083, China

Received:2004-10-08 Revised:2004-11-10 Online:2004-12-15 Published:2004-12-15
Contact: WANG Jing-yu*

摘要/Abstract

摘要： 目的研究从九个不同产地采集的中药商陆中Be, Cd, Ce, Cr, Cu, Dy, Er, Eu, Gd, Ge, Ho, La, Lu, Mo, Nd, Pb, Pr, Sm, Sr, Tb, Tl, Tm, Y, Yb, Zn等25种无机元素的分布规律. 方法采用湿法消化处理样品,在优化条件下用电感耦合等离子体质谱(ICP-MS)法同时测定25种元素. 结果 ICP-MS测定商陆中25种元素的检出限为0.003~0.71 ng·mL^-1,回收率为88%~119%. 相对标准差为1.7%~13.3%. 结论商陆样品中的元素浓度随产地不同而存在明显差异; 但不同产地的商陆中元素的归一化浓度呈非常类似的波浪式分布,商陆可能按照一定比例吸收元素,如果其他中草药也存在类似规律,则有可能为研究中草药的元素指纹图谱奠定基础.

关键词: 中药, 中药, 中药, 微量元素, 微量元素, 微量元素, 电感耦合等离子体质谱, 电感耦合等离子体质谱, 电感耦合等离子体质谱, 分布, 分布, 分布

Abstract: Aim To study the distribution of 25 elements, i.e. Be, Cd, Ce, Cr, Cu, Dy, Er, Eu, Gd, Ge, Ho, La, Lu, Mo, Nd, Pb, Pr, Sm, Sr, Tb, Tl, Tm, Y, Yb and Zn in Phytolacca, a traditional Chinese medicinal herb, collected from nine areas of P.R. China. Methods Twenty-five elements in Phytolacca including essential elements, toxic elements and rare earth elements in traditional Chinese medicinal herbs from different areas were analyzed by ICP-MS. Results The 25 elements in Phytolacca were determined by ICP-MS under optimized conditions. The detection limits were 0.003-0.71 ng·mL^-1. The recoveries were 88%-118%. The relative standard deviations of the measurements were 1.7%-13.3%. Conclusion The determined concentrations of elements in Phytolacca acinosa Roxb vary from one area to another; however, the distribution tendency of elements in all the samples is similar. The distribution tendency of rare earth elements in Phytolacca acinosa Roxb is consistent with that in nature.

Key words: Traditional Chinese medicinal herbs, Traditional Chinese medicinal herbs, trace elements, trace elements, ICP-MS, ICP-MS, distribution, distribution

中图分类号:

R917.03

R931.1

Supporting: ^*Corresponding author. Tel.: 86-10-82801107

杜莹, 欧阳荔, 刘雅琼, 王京宇^*. 不同产地商陆中25种元素的波浪式分布[J]. .

DU Ying, OUYANG Li, LIU Ya-qiong, WANG Jing-yu^*. Wavy Distribution of Trace Elements in Phytolacca Samples from Different Areas[J]. .

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