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| Determination of Phosphorus in Silver-Copper Alloy by Precipitation Separation-ICP-AES |
| Received:June 01, 2016 Revised:October 13, 2016 |
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| DOI：doi:10.3969/j.issn.2095-1035.2017.01.011 |
| KeyWord:analytical chemistry; ICP-AES; silver-copper alloy; phosphorus |
| Author | Institution |
| LIU Wei |
贵研资源（易门）有限公司 |
| LIU Wen |
贵研资源（易门）有限公司 |
| XU Guang |
贵研资源（易门）有限公司 |
| GAN Jianzhuang |
贵研铂业股份有限公司，稀贵金属综合利用新技术国家重点实验室项目，昆明 |
| LIN Bo |
贵研资源（易门）有限公司 |
| MA Wangrui |
贵研资源（易门）有限公司 |
| YAO Yanbo |
贵研资源（易门）有限公司 |
| CHONG Biao |
贵研资源（易门）有限公司 |
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| Abstract: |
| method for the determination of phosphorus in silver-copper alloy by precipitation separation-ICP-AES was established. Analytical conditions, including precipitation separation of silver chloride and copper sulfide, selection of spectral lines and determination conditions of ICP-AES were systematically investigated. The results showed that the concentrations of silver and copper ions were less than 0.1 mg/L and 1 mg/L, respectively. Cu interferencecould be neglected. The detection limit was 0.076mg/L when the instrument power was 1.3 kW and P 213.617 nm was used as the analytical line. The contents of Phosphorus in silver-copper alloy were determinedas0.00092%—0.0032%.The relative standard deviation (RSD,n=7) and the recoverywere 5.3%—1.7% and 94.4%—103%, respectively. The method is simple, rapid, and has been applied to production analysis. |
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