低含量金的分析方法浅探  

Exploration on assay method of low content gold

作　　者：邵从和[1] 陈小燕[1] 

机构地区：[1]铜陵有色金属公司设计研究院

出　　处：《黄金》1998年第11期47-49,共3页Gold

摘　　要：主要探索以湿法手段，将低含量金试样经混合酸分解后，通过聚氨脂泡沫塑料动态分离富集，灰化灼烧，将金溶解并浓缩至小体积，然后用火焰原子吸收法测定，以提高低含量金分析的准确度。本法标准加入回收率为９００％～１０１０％。The sample of low gold content is decomposed by mixed acid,then,carrying out dynamic separation and enrichment by using polyurethane foam plastic,then, roasting,ashing and getting the gold disolved and enriched into small volume,again,determining it by flame atomic absorption spectrophotometry to improve the accuracy of the assay of low content gold.The standard add on recovery rate by this method is 90.0%-101 0%

关 键 词：低含量 金 富集 聚氨脂泡沫塑料 动态分离富集 

分 类 号：O614.123[理学—无机化学]