| 微波消解氢化物原子吸收法测定煤中的砷 |
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| 引用本文： | 刘要治.微波消解氢化物原子吸收法测定煤中的砷[J].广州化工,2011,39(13):113-114,150. |
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| 作者姓名： | 刘要治 |
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| 作者单位： | 中国电力投资集团新疆能源有限公司,新疆,伊犁,835000 |
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| 摘 要： | 提出了微波消解原子吸收法测定煤中砷的分析方法。采用在密闭容器中,用浓王水和少量氢氟酸做溶剂来消解煤,样品溶解完毕泄压后定容,用内置氢化物和耐氢氟酸装置的原子吸收仪测定砷的含量。同时考察了微波消解称样量、浓王水和少量氢氟酸用量及压力对消解效果的影响,测量结果的检出限、回收率、相对标准偏差（n=6）和样品的测定结果与国家标准方法测定的结果相一致。本法适应于煤中砷的测定。
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| 关 键 词： | 微波消解 原子吸收法 测定 砷 |
Determination of Arsenic in Coal with Microwave Digestion Atomic Absorption Spectrometry |
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| LIU Yao-zhi.Determination of Arsenic in Coal with Microwave Digestion Atomic Absorption Spectrometry[J].GuangZhou Chemical Industry and Technology,2011,39(13):113-114,150. |
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| Authors: | LIU Yao-zhi |
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| Affiliation: | LIU Yao-zhi(Xinjiang Energy Co.,Ltd.,China Power Investment Corporation,Xinjiang Erie 835000,China) |
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| Abstract: | An microwave digestion atomic absorption spectrometry analysis method for determine arsenic in coal was proposed.Adopted in the airtight container with strong aqua regia,and a small amount of hydrofluoric acid do solvent to clearing up the coal,sample dissolved after finished pressure the capacity,with a built-in hydride resistance and hydrofluoric acid device of atomic absorption meter measuring the content of arsenic.Meanwhile,the microwave digestion sample weight,aqua regia and a small amount of dispelling hydrofluoric acid dosage and pressure were inspected,and the effects of the measurement result detection limit and the recovery,relative standard deviation(n=6) and samples with the measured results of the national standard method for determining findings were consistent.This method was suitable for the determination of arsenic in coal. |
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| Keywords: | microwave digestion atomic absorption method determination arsenic |
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