多种贵金属富集惰性物料化学分析方法研究

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关键词：化学分析；贵金属；氢还原；微波消解；电感耦合等离子体发射光谱仪（ICP-OES）中图分类号：0657.31 文献标识码：A 文章编号：1008-9500（2025）11-0010-04DOI： 10.3969/j.issn.1008-9500.2025.11.004

Research on Chemical Analysis Methods for Inert Materials Enriched with Multiple Precious Metals

GONG Weilong，UO Yongxi，REN Juan，IBo （Hootech Inc.， Xuzhou 221600， China）

Abstract：A chemical analysis methodforsimultaneouslydetermining platinum，palladium，rhodium，iridium，ruthenium， gold，and silver ininertmaterialsenriched withmultiple precious metals isstudied.Thesamplesare subjectedto grinding， calcination，hydrogen reduction，and microwave digestion toenhance their activityand improveacid leaching rate.The mixedstandardsolutionofplatinum，palladium，rhodum，iridium，ruthenium，gold，andsilver is preparedusing thestadard addition method，and the suitable spectral lines are selected，and the standard curve is established using Inductively Coupled Plasma- Optical Emision Spectroscopy（ICP-OES），and the precision and accuracy of the method are also evaluated.The results show that the relative standarddeviations of platinum，palladium，rhodium，and goldare 0.2%～0.7% ， whiletherelative standarddeviationsof iridium，ruthenium，and silver are O.8%～1.7%，andtherecoveryrateof spiked samples is 97.7%～ 101.4% .This method has strong operability and high precision，and is suitable for chemical analysis of high content and various precious metal enrichment materials.

Keywords： chemical analysis; precious metals; hydrogen reduction; microwave digestion; Inductively Coupled PlasmaOptical Emission Spectrometer （ICP-OES）

贵金属有众多优良特性，在现代工业中应用广泛，在我国倡导循环经济的背景下，从二次资源中高效清洁回收贵金属具有十分重要的意义。（剩余3603字）