| 极谱法测定地球化学样品中钨、钼的质量分数 |
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| 引用本文： | 王明珠,崔玉仙,王苑,刘双梅,李玲霞.极谱法测定地球化学样品中钨、钼的质量分数[J].宁夏工程技术,2010,9(2):135-137,141. |
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| 作者姓名： | 王明珠 崔玉仙 王苑 刘双梅 李玲霞 |
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| 作者单位： | 宁夏地矿局中心实验室,宁夏,银川,750021 |
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| 基金项目： | 宁夏地矿局"西北地区区域化学勘查样品配套分析方案探讨"基金 |
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| 摘 要： | 对1：5万区域地球化学普查样中钨（W）、钼（Mo）分析方法的研究,建立了在苯羟乙酸-氯酸钾-辛可宁体系中,催化极谱法测定普查样品中W、Mo的质量分数.结果表明,ρ（W）=0～0.08μg/mL、ρ（Mo）=0～0.064μg/mL时,溶液质量浓度与峰电流有较好的线性关系;该方法的精密度、准确度较好,回收率为97.7%～99.6%,最低检测质量分数分别为0.23,0.52μg/g.能够满足化探样品中W、Mo检测的要求。
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| 关 键 词： | 极谱法 钨 钼 |
Determination of Tungsten and Molybdenum in regional geochemical survey samples by polarography |
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| WANG Mingzhu,CUI Yuxian,WANG Yuan,LIU Shuangmei,LI Lingxia.Determination of Tungsten and Molybdenum in regional geochemical survey samples by polarography[J].Ningxia Engineering Technology,2010,9(2):135-137,141. |
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| Authors: | WANG Mingzhu CUI Yuxian WANG Yuan LIU Shuangmei LI Lingxia |
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| Affiliation: | (Earth and Mineral Central Laboratory of Ningxia,Ningxia Yinchuan 750021,China) |
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| Abstract: | The tungsten and molybdenum catalytic polarography was established in benzene hydroxide acetic acid-potassium chlorate-cinchonine system with analysis method of tungsten and molybdenum in 1：50,000 regional geochemical survey samples.Result shows that solution concentration and peak current has a good linear relationship when ρ（W）=0～0.24 μg/mL、ρ（Mo）=0～0.32 μg/mL;the method has preferable precision and accuracy,it＇s recovery is 97.7%～101.0%.The detection limit was 0.23 ug/g and 0.52ug/g for tungsten and molybdenum,respectively,it can meet the requirements of measurements. |
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| Keywords: | polarography tungsten molybdenum |
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