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| 氢气还原-ICP-AES法测定化工炉灰中的铑含量 |
| Determination of rhodium content in chemical catalytic furnace ash by ICP-AES after hydrogen gas reduction |
| 投稿时间：2022-11-17 |
| DOI： |
| 中文关键词: 化工炉灰 氢气还原 电感耦合等离子体原子发射光谱(ICP-AES) 铑 |
| 英文关键词: chemical catalytic furnace ash hydrogen gas reduction ICP-AES rhodium |
| 基金项目:云南贵金属实验室科技计划项目(YPML-2023050237:铂族金属二次资源分析技术及其评价研究) |
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| 中文摘要: |
| 贵金属合金催化网在使用过程中产生含铑的化工炉灰中含有贵金属，具有较高的回收价值。由于其含有有机物及氧化态铑样品难以消解。本文采用灼烧后氢气还原，盐酸-过氧化氢溶液密闭消解，所得溶液使用ICP-AES测定。结果表明，测定铑含量为0.01%~5.0%的化工炉灰，相对标准偏差(RSD)＜2% (n=7)，加标回收率为95.50%~104.46%，测定结果与管理样名义值吻合，能够满足回收过程中贸易的分析要求。 |
| 英文摘要: |
| Chemical furnace ash was generated during the use of pernicious metal alloy catalytic net, which has high recovery value. Because of the ash contains organic matter and oxidized stateRhodium, it difficult to dissolve. In this paper, hydrogen was reduced after ignition, and hydrochloric acid-hydrogen peroxide solution was used for airtight digestion，the obtained solution was determined by ICP-AES. For Chemical catalytic furnace ash with Rhodium concentration rage of 0.01%~5.0%, the relative standard deviation (RSD) was less than 2% (n=7), and the recovery was 95.50%~104.46%. The result were in agreement with the nominal values of quality control sample，meeting the requirement for recycling trade. |
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