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| 利用铅同位素比值判断丹参不同产地来源 | |
| 引用本文： | 黄志勇,杨妙峰,庄峙厦,王小如,Frank S C Lee.利用铅同位素比值判断丹参不同产地来源[J].分析化学,2003,31(9):1036-1039. |
| 作者姓名： | 黄志勇 杨妙峰 庄峙厦 王小如 Frank S C Lee |
| 作者单位： | 1. 厦门大学化学系,现代分析科学教育部重点实验室,厦门,361005;集美大学生物工程学院,厦门,361021 2. 厦门大学化学系,现代分析科学教育部重点实验室,厦门,361005 3. 香港浸会大学化学系,香港 |
| 基金项目： | 科技部中药重中之重项目 (No .99 92 9 0 2 13 )，福建省中药标准化项目 (No .2 0 0 0F0 0 1)资助课题 |
| 摘 要： | 建立了用微柱流动注射与电感耦合等离子体质谱联用的铅同位素比值测量方法。利用铅与5-磺基-8-羟基喹啉的螯合反应在线分离测定丹参样品中的铅同位素比值，并利用铅同位素比值的分布进行中药丹参产地来源的研究。实验结果表明，相同地区来源的丹参样品其铅同位素比值分布相对集中，而不同地区来源的丹参，铅的同位素比值则有明显的区别。因此，铅的同位素比值可作为中药材的产地来源判别依据。 |
| 关 键 词： | 铅同位素比值 丹参 产地来源 流动注射 电感耦合等离子体质谱 5-磺基-8-羟基喹啉 中药材 |
Source Identification of Salvia Miltiorrhiza BUNGE (Danshen) by Lead Isotope Ratios |
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| Frank S C Lee.Source Identification of Salvia Miltiorrhiza BUNGE (Danshen) by Lead Isotope Ratios[J].Chinese Journal of Analytical Chemistry,2003,31(9):1036-1039. | |
| Authors: | Frank S C Lee |
| Abstract: | The hyphenated technique of flow injection and inductively coupled plasma-mass spectrometry (ICP-MS) system with micro-column was established. Based on the analytical method, lead isotope ratios of Danshen could be accurately measured. The trace lead in the sample was concentrated and the matrix was removed on-line. Precision of the measurement was tested. The results show that the relative standard deviations (RSD%) meet the analytical requirement. For Danshen of the same area the lead isotope ratios are similar, but they are different for the samples from different sources. So the isotope ratios can be used to identify the sources of the Chinese medicines. |
| Keywords: | Inductively coupled plasma mass spectrometry flow injection lead isotope ratios Salvia Miltiorrhiza BUNGE (Danshen) source identification |
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