| 部分溶样电感耦合等离子体质谱法测定岩石样品中的锗 |
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| 引用本文： | 杨小丽,张勤,邹棣华,杨小莉.部分溶样电感耦合等离子体质谱法测定岩石样品中的锗[J].矿产综合利用,2016,37(4):78-80,89. |
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| 作者姓名： | 杨小丽 张勤 邹棣华 杨小莉 |
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| 作者单位： | 1.武汉地质调查中心，国土资源部中南矿产资源监督检测中心，湖北 武汉 430205; |
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| 基金项目： | 中国地质大调查项目(12120113014700) |
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| 摘 要： | ICP-MS具有灵敏度高,检出限低、线性范围宽等优势,广泛的应用于各种类型样品的微量痕量超痕量元素测定中。但因其对可溶解固体总量(TDS)有严格的要求,且锗的测定中70Ge受70Zn的干扰,72Ge受72Cl2的干扰等,一定程度上限制了ICP-MS应用于锗的测定。本方法尝试部分溶样,减少待测溶液的可溶解固体总量(TDS),避免采用盐酸带来的质谱干扰,选择合适的同位素,对岩石样品中的锗进行了测定。锗的检出限为0.008μg/g,精密度(RSD)在3.09%～8.98%之间,加标回收率在94.8%～103.7%之间,能满足岩石样品中锗的准确快速测定。
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| 关 键 词： | 锗 部分溶样 电感耦合等离子体质谱 可溶解固体总量 |
| 收稿时间： | 9/8/2015 12:00:00 AM |
| 修稿时间： | 2015/12/1 0:00:00 |
Partial dissolution determination of germanium in rock samples by Inductively Coupled Plasma Mass Spectrometry |
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| Yang Xiaoli,Zhang Qin,Zou Dihua and Yang Xiaoli.Partial dissolution determination of germanium in rock samples by Inductively Coupled Plasma Mass Spectrometry[J].Multipurpose Utilization of Mineral Resources,2016,37(4):78-80,89. |
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| Authors: | Yang Xiaoli Zhang Qin Zou Dihua and Yang Xiaoli |
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| Affiliation: | 1.Wuhan Geological Survey Center，China and South China mineral resources supervision and Inspection Center，Wuhan, Hunan, China;2.Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences, Langfang, Hebei, China |
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| Abstract: | ICP-MS has the advantages of high sensitivity,low detection limit,wide linear range,and is widely used in the determination of trace trace trace elements in various types of samples. But because of its strict requirements for the total amount of dissolved solids (TDS),and 70Zn interfere 70Ge, 72Cl2 interfere 72Ge in the determination. The above reasons are limited to the determination of germanium in ICP-MS.In this method,the total dissolved solids (TDS) of the solution can be reduced,and the sample can be used to select the appropriate isotopes. The detection limit was 0.008 g/g and the precision (RSD) was between 8.98% and 3.09%,and the recovery rate was between 103.7% and 94.8%,which could meet the accurate and rapid determination of germanium in rock samples. |
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| Keywords: | Germanium partial dissolution inductively coupled plasma mass spectrometry(ICP-MS) the total amount of dissolved solids (TDS) |
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