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- Title
碱熔-碲共沉淀-ICP-AES 法测定二次资源物料中的钌.
- Authors
刘伟; 崇彪; 刘荣正; 刘文; 罗仙; 罗雄; 金云杰; 林波
- Abstract
A method was established for the determination of ruthenium contents in secondary ruthenium resource by ICP-AES after alkali fusion-tellurium coprecipitation. The decomposition of the sample, the separation and determination of ruthenium, the accuracy and precision of method were systematically investigated. The sample (0.5g) was pretreated by the following procedures to produce a solution: mixing with 5 g sodium peroxide, melting in muffle furnace at 730 °C for 25 min, leaching with water after cooling, acidifying with hydrochloric acid, adding oxidant to keep ruthenium in a higher valence state. Ruthenium was separated from the solution by tellurium coprecipitation and then submitted for ICP-AES measurement. The spiked recovery was found to be 98.8% -99.8% and the relative standard deviation (RSD, n=9) was 0.3% 1.0%. The established method is simple and time-saving, and can be applied to the analysis of the ruthenium contents in secondary resource.
- Publication
Precious Metals / Guijinshu, 2023, Vol 44, Issue 2, p57
- ISSN
1004-0676
- Publication type
Article