| 原子吸收光谱法连续测定金精矿中的银铜铅锌 |
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| 引用本文： | 孔令强,李伟彦,邵国强.原子吸收光谱法连续测定金精矿中的银铜铅锌[J].黄金,2016(11):73-75. |
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| 作者姓名： | 孔令强 李伟彦 邵国强 |
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| 作者单位： | 1. 山东国大黄金股份有限公司;2. 山东招金地质勘查有限公司;3. 烟台国大萨菲纳高技术环保精炼有限公司 |
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| 摘 要： | 针对金精矿日常化验中银、铜、铅、锌需分别溶样测定,浪费人力、时间,采用火焰原子吸收法一次溶样连续测定样品中的银、铜、铅、锌。金精矿采用盐酸-硝酸-氢氟酸-高氯酸混酸完全消解,盐酸(1+9)溶液定容,原子吸收光谱法进行测定。该方法加入标准物质回收率为96.9%~107.7%,相对标准偏差RSD(n=7)为1.17%~7.07%,检出限分别为Cu 0.001 5μg/m L、Pb 0.029 9μg/m L、Zn 0.011 2μg/m L、Ag 0.001 9μg/m L。该方法对金精矿中银、铜、铅、锌的测定结果与国家标准方法测定值相符。
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| 关 键 词： | 原子吸收光谱法 银 铜 铅 锌 |
Continuous determination of silver,copper,lead and zinc in gold concentrates by atomic absorption spectrometry |
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| Abstract: | Separate determination of silver,copper,lead and zinc in gold concentrates in daily testing wastes time and labor. So AAS was used to continuously determine silver,copper,lead and zinc in single-time sample dissolution. Gold concentrates were dissolved by mixed HCl-HNO3 -HF-HClO4 ,calibrated by HCl(1+9) solution and deter-mined by AAS. The method achieved a recovery rate of 96. 9 % -107. 7 % with the addition of standard substance, the RSD(n=7) was 1. 17 % -7. 07 % and the detection limits were 0. 001 5 μg/mL for Cu,0. 029 9 μg/mL for Pb,0. 011 2 μg/mL for Zn,and 0. 001 9 μg/mL for Ag. The method for silver,copper,lead and zinc determination was consistent with national standard method. |
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| Keywords: | atomic absorption spectrometry silver copper lead zinc |
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