| 泡塑吸附-电感耦合等离子体发射光谱法测定矿石中的金 |
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| 引用本文： | 谈建安,黑文龙,黄兴华,陈月源.泡塑吸附-电感耦合等离子体发射光谱法测定矿石中的金[J].岩矿测试,2009,28(2):147-150. |
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| 作者姓名： | 谈建安 黑文龙 黄兴华 陈月源 |
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| 作者单位： | 国土资源部兰州矿产资源监督检测中心,甘肃,兰州,730050 |
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| 摘 要： | 试样在650℃烧制、王水溶解、泡塑振荡吸附、硫脲解脱,用电感耦合等离子体发射光谱法测定矿石中的金量,克服了原子吸收光谱法对低含量金测定稳定性和精密度差、对高含量金测定分取误差大和返工率高等不足,缩短了分析时间。方法经国家一级标准物质分析验证,结果与标准值相符。对二级标准物质测定的方法精密度(RSD,n=12)为6.45%。方法检出限为0.138μg/g,线性范围宽,适用于矿石中0.2μg/g以上金的测定。
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| 关 键 词： | 电感耦合等离子体发射光谱法 王水溶解 泡塑吸附 硫脲解脱 金 矿石 |
| 收稿时间： | 2008/7/31 0:00:00 |
| 修稿时间： | 2008/10/6 0:00:00 |
Determination of Gold in Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry with Plastic Foam Absorption |
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| TAN Jian-an,HEI Wen-long,HUANG Xing-hua and CHEN Yue-yuan.Determination of Gold in Ores by Inductively Coupled Plasma-Atomic Emission Spectrometry with Plastic Foam Absorption[J].Rock and Mineral Analysis,2009,28(2):147-150. |
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| Authors: | TAN Jian-an HEI Wen-long HUANG Xing-hua and CHEN Yue-yuan |
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| Affiliation: | (Lanzhou Testing and Quality Supervision Center for Geological and Mineral Products,The Ministry of Land and Resources,Lanzhou 730050,China) |
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| Abstract: | Ore sample,pretreated at 650℃,was decomposed with aqua regia.Au in the sample solution was then pre-concentrated by adsorbing with polyurethane foam plastic and released with thiourea solution and determined by inductively coupled plasma-atomic emission spectrometry.The detection limit of the method for Au was 0.138 μg/g.The method has been applied to determination of Au in National Standard Reference materials and the results are in agreement with certified values with precision of 6.45%RSD(n=12).The method provides the advantages of higher stability,higher accuracy and more efficiency compared with atomic absorption spectrometry(AAS). |
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| Keywords: | inductively coupled plasma-atomic emission spectrometry aqua regia dissolution plastic foam absorption thiourea elution gold ore |
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