| 灰化法与微波消解法处理地电化学泡塑样品的分析效果对比研究 |
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| 引用本文： | 严洪泽,孙彬彬,徐进力,周国华,贺灵,刘银飞,王腾云.灰化法与微波消解法处理地电化学泡塑样品的分析效果对比研究[J].岩矿测试,2016,35(3):276-283. |
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| 作者姓名： | 严洪泽 孙彬彬 徐进力 周国华 贺灵 刘银飞 王腾云 |
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| 作者单位： | 中国地质大学(北京)地球科学与资源学院, 北京 100083;中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质大学(北京)地球科学与资源学院, 北京 100083;中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000,中国地质大学(北京)地球科学与资源学院, 北京 100083;中国地质科学院地球物理地球化学勘查研究所, 河北 廊坊 065000;国土资源部地球化学勘查技术重点实验室, 河北 廊坊 065000 |
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| 基金项目： | 中国地质调查局地质矿产调查评价项目"东乌旗整装勘查区热磁与地电化学方法技术研究应用"(12120113100400)和"勘查地球化学特殊样品分析新方法新技术应用研究"(1212011120278) |
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| 摘 要： | 当前普遍使用灰化法对地电化学泡塑样品进行预处理,但可能存在高温下某些元素(如Hg、As)挥发损失的缺点。本文选择了内蒙古洛恪顿热液型铅锌多金属矿床一条地电化学勘查剖面,开展灰化法及微波消解法处理地电化学泡塑样品的勘查效果对比研究,采用原子荧光光谱和高分辨电感耦合等离子体质谱测定其中的主要元素。结果表明:①对于Zn、Cu、Fe、La等十余种元素,两种处理方法取得的异常模式基本一致,可根据实际工作需求任选一种方法进行样品预处理;②对于Au、Pb等元素,微波消解法因为取样量小,可能存在较严重的样品均匀性、代表性及分析检出限等问题,应采用灰化法;③对于Hg,灰化法存在显著的元素损失,更适合采用微波消解法;④对于As,两种方法均存在较大问题,建议参考植物样品尝试使用硝酸及高氯酸直接溶解等方法进行预处理。
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| 关 键 词： | 地电化学 泡塑样品 灰化法 微波消解 多元素分析配套方案 |
| 收稿时间： | 2015/11/25 0:00:00 |
| 修稿时间： | 5/6/2016 12:00:00 AM |
Comparison of Ashing and Microwave Digestion in Analyzing Geoelectrochemical Polyurethane Foam Samples |
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| YAN Hong-ze,SUN Bin-bin,XU Jin-li,ZHOU Guo-hu,HE Ling,LIU Yin-fei and WANG Teng-yun.Comparison of Ashing and Microwave Digestion in Analyzing Geoelectrochemical Polyurethane Foam Samples[J].Rock and Mineral Analysis,2016,35(3):276-283. |
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| Authors: | YAN Hong-ze SUN Bin-bin XU Jin-li ZHOU Guo-hu HE Ling LIU Yin-fei and WANG Teng-yun |
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| Institution: | School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China,Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China,Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China,Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China,Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China,School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China and School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Key Laboratory for Geochemical Exploration Technology, Ministry of Land and Resources, Langfang 065000, China |
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| Abstract: | Currently, ashing method is widely used to pretreat the geoelectrochemical polyurethane foam samples, but there may be volatilization loss of some elements(E.g. Hg, As) under high temperature. This paper selected a geo-electrochemical exploration line in Luokedun hydrothermal lead-zinc polymetallic deposit in Inner Mongolia as the research subject. We compared the exploration effects between ashing method and microwave digestion in pretreating foam samples, and measured the content of some related elements by HR-ICP-MS and AFS. Research shows that:① For more than ten kinds of elements include Zn, Cu, Fe, and La, abnormal patterns of the two methods are basically identical, both methods can be used according to the combination of elemental analysis;② For Au, Pb and other elements, due to the small sample volume, microwave digestion has relatively serious problems of homogeneity, representative and detection limit, so ashing is more suitable for them; ③ For Hg, there is a significant loss in ashing, microwave digestion is more suitable; ④ For As, two analytical methods both have a relatively large problem, we suggest to consider the pretreatment for plant samples to directly dissolve the samples by using nitric and perchloric acid. |
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| Keywords: | geoelectrochemistry polyurethane foam samples ashing method microwave digestion combination schemes of sample analysis methods |
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