Determination of rhodium in rhodium parker waste liquid of by fire assay - ICP-AES.

Autor: JIN Yunjie, LUO Xian, MA Wangrui, LIU Wen, LUO Xiong, MA Zunmin, BO Suyuan
Předmět:
Zdroj: Precious Metals / Guijinshu; 2023 Special Issue, Vol. 44, p130-133, 4p
Abstrakt: Rhodium parker waste liquid contains organic matter, phosphorus and salts, will affect the accurate analysis and determination of rhodium content. Through the comparison test, the sample is pre-treated by fire assay method. In the process of smelting and enrichment of fire assay, platinum with 3 times rhodium content and gold with 1 times l rhodium content are added to enrich rhodium, and rhodium alloy particles are sealed and dissolved. The test solution was determined by ICP-AES. The relative standard deviation (RSD) of the samples with rhodium content ranging from 50 g/t to 2000 g/t was less than 2%, and the spiked recoveries are 96.7%~101.3%, which could meet the requirements of production analysis. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index