| 泡沫塑料富集-电感耦合等离子体质谱法测定土壤中超痕量金铂钯 |
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| 引用本文： | 王瑞敏.泡沫塑料富集-电感耦合等离子体质谱法测定土壤中超痕量金铂钯[J].岩矿测试,2011,30(3):295-298. |
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| 作者姓名： | 王瑞敏 |
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| 作者单位： | 国土资源部沈阳矿产资源监督检测中心,辽宁沈阳,110032 |
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| 摘 要： | 样品采用王水溶解,二氯化锡还原,泡沫塑料富集,用Re作内标,电感耦合等离子体质谱法同时测定土壤中超痕量金、铂、钯。在盐酸-二氯化锡体系中,盐酸酸度为15%,二氯化锡浓度为45 g/L,吸附时间30 min时吸附效果明显,吸附温度为25℃时吸附率相对稳定。方法检出限Au为0.21 ng/g,Pt为0.18 ng/g,Pd为0.16ng/g,方法加标回收率Au为91.3%~97.8%,Pt为92.0%~96.7%,Pd为96.0%~101.6%。该方法用于测定国家一级标准物质,线性范围宽、重现性好,结果准确可靠,样品处理简便、快速。
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| 关 键 词： | 金 铂 钯 二氯化锡 土壤 电感耦合等离子体质谱法 泡沫塑料富集 |
| 收稿时间： | 2011/1/26 0:00:00 |
| 修稿时间： | 2011/3/22 0:00:00 |
Determination of Ultra-Trace Au, Pt and Pd in Topsoil Samples by Foam Plastics Enrichment-Inductively Coupled Plasma-Mass Spectrometry |
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| WANG Rui-min.Determination of Ultra-Trace Au, Pt and Pd in Topsoil Samples by Foam Plastics Enrichment-Inductively Coupled Plasma-Mass Spectrometry[J].Rock and Mineral Analysis,2011,30(3):295-298. |
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| Authors: | WANG Rui-min |
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| Institution: | WANG Rui-min(Shenyang Supervision and Testing Center of Mineral Resources,Ministry of Land and Resources,Shenyang 110032,China) |
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| Abstract: | The samples were dissolved by aqua regia,reduced by SnCl2 and absorbed by the foam plastics.The ultra-trace Au,Pt and Pd in topsoil samples had been simultaneously determined by inductively coupled plasma-mass spectrometry(ICP-MS) with Re as internal standard.The adsorption efficiency was stable under the conditions of 15% HCl,45 g/L SnCl2 and absorption time of 30 minutes at 25℃.The detection limits of Au,Pt and Pd were 0.21 ng/g,0.18 ng/g and 0.16 ng/g,respectively.The recovery coefficients of Au,Pt and Pd were 93.3%-97.6%,92.5%-102.5% and 91.0%-98.4%,respectively.This method was verified by the analysis of the national standard samples with accurate and reliable results.This method has the advantages of simple operation,rapid analysis,wide linear range and reproducibility. |
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| Keywords: | Au Pt Pd stannous chloride soil inductively coupled plasma-mass spectrometry foam plastics enrichment |
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