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THE PRETREATMENT METHOD FOR ANALYSING A TRACE AMOUNT OF HEAVY METAL IN STEEL
THE PRETREATMENT METHOD FOR ANALYSING A TRACE AMOUNT OF HEAVY METAL IN STEEL
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机译:钢中重金属痕量分析的预处理方法
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摘要
The present invention relates to a pretreatment method for the analysis of trace amounts of heavy metals contained in steel, and more particularly, in the pretreatment process for the analysis of heavy metals such as cadmium, lead, etc. Degradation of the sample in detail and selective separation of the iron matrix from the decomposed steel sample using strongly acidic cation exchange resins with sulfonic acid groups as exchangers enable heavy metal analysis up to ppb (part per billion) levels. The present invention relates to a pretreatment method for analyzing trace amounts of heavy metals contained in steel.
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