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混合酸溶-电感耦合等离子体发射光谱法测定粉煤灰样品中的微量元素镓

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黄靖, 王英滨, 周冠轩, 马真乾. 混合酸溶-电感耦合等离子体发射光谱法测定粉煤灰样品中的微量元素镓[J]. 环境化学, 2020, (5): 1427-1433. doi: 10.7524/j.issn.0254-6108.2019051101
引用本文: 黄靖, 王英滨, 周冠轩, 马真乾. 混合酸溶-电感耦合等离子体发射光谱法测定粉煤灰样品中的微量元素镓[J]. 环境化学, 2020, (5): 1427-1433. doi: 10.7524/j.issn.0254-6108.2019051101
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HUANG Jing, WANG Yingbin, ZHOU Guanxuan, MA Zhenqian. Determination of trace element gallium in coal fly ash sample by ICP-OES with mixed acid solution[J]. Environmental Chemistry, 2020, (5): 1427-1433. doi: 10.7524/j.issn.0254-6108.2019051101
Citation: HUANG Jing, WANG Yingbin, ZHOU Guanxuan, MA Zhenqian. Determination of trace element gallium in coal fly ash sample by ICP-OES with mixed acid solution[J]. Environmental Chemistry, 2020, (5): 1427-1433. doi: 10.7524/j.issn.0254-6108.2019051101
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混合酸溶-电感耦合等离子体发射光谱法测定粉煤灰样品中的微量元素镓

  • 中国地质大学(北京)数理学院, 北京, 100083

    • 通讯作者: 王英滨, E-mail: wyb@cugb.edu.cn ; 
  • 基金项目:

    中国神华科学技术研究院合作研究基金（3-4-2014-140）资助.

Determination of trace element gallium in coal fly ash sample by ICP-OES with mixed acid solution

  • School of Science, China University of Geosciences(Beijing), Beijing, 100083, China

    • Corresponding author: WANG Yingbin, wyb@cugb.edu.cn ; 
  • Fund Project: Supported by Cooperative Research Fund for the China Shenhua Institute of Science and Technology(3-4-2014-140).

  • 摘要: 粉煤灰是我国最大的工业固体废弃物之一，准确测定粉煤灰中镓（Ga）的含量对实现粉煤灰的高附加值利用具有重要的意义.通常采用分光光度法测定粉煤灰样品中的Ga，需使用多种有机试剂，易造成环境污染.本文采用电感耦合等离子体发射光谱法（ICP-OES）测定Ga，不使用有机试剂.通过考察HNO3、HCl、HF、HNO3-HCl、HNO3-HF-HClO4、HNO3-HF-HCl-HClO4的溶样效果，确定使用HNO3-HF-HClO4溶解样品.本方法的检出限为0.0042 μg·g-1，相对标准偏差为1.8%，加标回收率为95.4%—106.0%.方法简便、快速，应用于粉煤灰中Ga的分析，结果与X射线荧光光谱法（XRF）的测定值相符.
    Abstract: Coal fly ash is one of the biggest solid wastes. An accurate determination of gallium in the coal fly ash is crucial to the high-value-added utilization of coal fly ash. The determination of gallium in coal fly ash generally uses spectrophotometry, which requires many organic reagents, and it can pollute the environment. Gallium was determined using inductively coupled plasma optical emission spectrometry (ICP-OES) without using organic reagents in this study. The effects of HNO3, HCl, HF, HNO3-HCl, HNO3-HF-HClO4 and HNO3-HF-HCl-HClO4 were analyzed. A coal fly ash sample in this paper was decomposed by HNO3-HF. The limit of detection of the method was 0.0042 μg·g-1. The relative standard deviation was 1.8% with the recoveries ranged from 95.4% to 106.0%. This method was convenient and rapid and used in the determination of gallium from coal fly ash. The determined result was in accord with the result determined by X-ray fluorescence (XRF).
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  • 收稿日期:  2019-05-11

混合酸溶-电感耦合等离子体发射光谱法测定粉煤灰样品中的微量元素镓

    通讯作者: 王英滨, E-mail: wyb@cugb.edu.cn ; 
  • 中国地质大学(北京)数理学院, 北京, 100083
  • 收稿日期:  2019-05-11
基金项目:

中国神华科学技术研究院合作研究基金（3-4-2014-140）资助.

摘要: 粉煤灰是我国最大的工业固体废弃物之一，准确测定粉煤灰中镓（Ga）的含量对实现粉煤灰的高附加值利用具有重要的意义.通常采用分光光度法测定粉煤灰样品中的Ga，需使用多种有机试剂，易造成环境污染.本文采用电感耦合等离子体发射光谱法（ICP-OES）测定Ga，不使用有机试剂.通过考察HNO3、HCl、HF、HNO3-HCl、HNO3-HF-HClO4、HNO3-HF-HCl-HClO4的溶样效果，确定使用HNO3-HF-HClO4溶解样品.本方法的检出限为0.0042 μg·g-1，相对标准偏差为1.8%，加标回收率为95.4%—106.0%.方法简便、快速，应用于粉煤灰中Ga的分析，结果与X射线荧光光谱法（XRF）的测定值相符.

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