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| 重量法测定二次资源物料中高含量铑的研究 |
| Stumetric detedy on gravirmination of high content rhodium in secondary resource materials |
| 投稿时间：2023-08-15 |
| DOI： |
| 中文关键词: 分析化学 重量法 铑 硝酸六氨合钴 二次资源物料 |
| 英文关键词: analytical chemistry gravimetric method rhodium cobalt hexamonium nitrate secondary resource materials |
| 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: |
| 建立了一种二次资源物料中高含量铑的测定方法。对试样的前处理、干扰试验等进行了研究。试样通氢还原后于聚四氟乙烯消化罐中加20 mL盐酸、5 mL过氧化氢密闭加热消解，用硝酸六氨合钴重量法测定，消解不完全的残渣采用ICP-AES测定后补正。方法精密度(RSD)在0.29%~0.38%之间，加标回收率99.56%~101.05%，能较好地满足二次资源物料中高含量铑测定的精密度和准确度要求。 |
| 英文摘要: |
| A method for the determination of high content rhodium in secondary resources was developed. The pretreatment and interference tests of the samples were studied. After hydrogen reduction, the samples were digested with 20 mL hydrochloric acid and 5 mL hydrogen peroxide in a Teflon digestion tank. The samples were determined by cobalt hexamonium nitrate gravimetric method. The incomplete residue was determined by ICP-AES and corrected. The precision of the method was 0.29%~0.38%, and the recovery rate was 99.56%~101.05%, which could meet the precision and accuracy requirements of the determination of high content rhodium in secondary resources. |
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