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| ICP-MS测定土壤中铅同位素比值及地域差异性比较 | |
| 引用本文： | 张晓静,胡清源,朱风鹏,秦存永.ICP-MS测定土壤中铅同位素比值及地域差异性比较[J].分析试验室,2009,28(12). |
| 作者姓名： | 张晓静 胡清源 朱风鹏 秦存永 |
| 作者单位： | 1. 中国烟草总公司郑州烟草研究院,郑州,450001;河北中烟工业公司技术中心,石家庄,050051 2. 中国烟草总公司郑州烟草研究院,郑州,450001 3. 河北白沙烟草有限责任公司,石家庄,050035 |
| 基金项目： | 中国烟草总公司郑州烟草研究院院长科技基金 |
| 摘 要： | 建立用HNO_3-H_2O_2-HF体系微波消解前处理样品,利用电感耦合等离子体质谱测定土壤中铅同住素比值的方法,探讨并优化了影响测试结果的两种干扰因素.该方法中~(207)Pb/~(206)Pb和~(208)Pb/~(206)Pb的短期测量稳定性RSD分别达到0.12%和0.13%,长期测量的偏差分别在0.002和0.01以内,样品测量的最佳范围是10～40μg/L.采用标样-样品交叉法测定了湖南、湖北、云南、贵州、河南、福建、辽宁7个省的48个地区土壤中的铅同位素比值,结合聚类分析和主成分分析比较了各省土壤中同位素分布的差异,初步探讨了利用~(207)Pb/~(206)Pb和~(208)Pb/~(206)Pb比较烟叶产区的可能性. |
| 关 键 词： | 铅同位素比值 土壤 地域差异性 标样-样品交叉法 |
Determination of lead isotope ratios in soil by inductively coupled plasma mass spectrometry and comparison of source differentiation |
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| ZHANG Xiao-fing,HU Qing-yuan,ZHU Feng-peng,QIN Cun-yong.Determination of lead isotope ratios in soil by inductively coupled plasma mass spectrometry and comparison of source differentiation[J].Chinese Journal of Analysis Laboratory,2009,28(12). | |
| Authors: | ZHANG Xiao-fing HU Qing-yuan ZHU Feng-peng QIN Cun-yong |
| Institution: | ZHANG Xiao-jing1,2,HU Qing-yuan1,ZHU Feng-peng1 and QIN Cun-yong3(1.Zhengzhou Tobacco Research Institute of CNTC,Zhengzhou 450001,2.Technology Research & Development Center,Hebei Branch of China Tobacco Industrial Corporation,Shijiazhuang 050035,3.Hebei Baisha Tobacco Co.Ltd,Shijiazhuang 050035) |
| Abstract: | A method for the determination of lead isotope ratios in soil by inductively coupled plasma mass spectrometry(ICP-MS) with HNO3-H2O2-HF used for microwave digestion of samples has been developed.Effects of the two main factors on the determination results were studied.The relative standard deviations of 207Pb/206Pb and 208Pb/206Pb for short-term measurements were 0.12% and 0.13%.The absolute deviations of 207Pb/206Pb and 208Pb/206Pb for long-term measurement were less than 0.02 and 0.01,respectively.The opt... |
| Keywords: | Inductively coupled plasma mass spectrometry (ICP-MS) Lead isotope ratio Soil Source differentiation Standard-sample-bracketing (SSB) |
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