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| Determination of Tin and Tellurium Content in Copper Anode Slime and Silver Slag by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) |
| Received:December 21, 2011 Revised:March 05, 2012 |
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| DOI：doi:10.3969/j.issn.2095-1035.2012.02.0013 |
| KeyWord:copper anode mud, sub-silver residue; tin; tellurium; ICP-AES |
| Author | Institution |
| HE Mei |
大冶有色金属设计研究院有限公司 分析测试中心，湖北 黄石 |
| HU Junkai |
大冶有色金属设计研究院有限公司 分析测试中心，湖北 黄石 |
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| Abstract: |
| A new inductively coupled plasma atomic emission spectrometry (ICP-AES) method was established to determine tin and tellurium content in copper anode slime and silver slag. In this method, slime and slag samples were dissolved in molten potassium hydroxide and potassium nitrate mixtures. Then in the ammonia - ammonium chloride medium, ferric hydroxide was added to sample solutions to precipitate tin and tellurium, which result in separation and enrichment of tin and tellurium elements. Before testing by (ICP-AES), irons were added to series of standard samples for matrix matching. Besides, appropriate testing conditions for tin and tellurium as well as influence of co-existing elements on testing results were also studied. The method detection limits for tin and tellurium are 0.0012 and 0.024 μg/mL, respectively; recoveries for tin and tellurium are 98.00%~100.33% and 99.00% ~ 102.00%, respectively; relative standard deviations for tin and tellurium are 2.42%～6.61% and 1.32%～6.97%, respectively. The method is simple and fast, easy to master. The concentration range for elements is between 0.02% to 5.0%. |
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