论文部分内容阅读
近几年来,国外在贵金属分析方面的进展情况,主要表现在普遍采用火试金、新型溶剂萃取、离子交换、反相革取色谱等四种分离富集方法和化学发光、粉末直接原子化、电感耦合等离子光源光谱等三种测定方法.下面将分别作一概括介绍.一、贵金属的分离富集1.火试金:月前从几个主要产贵金属的国家来看,火试金法不单作为一种测定方法,而且普遍地把它作为一种分离富集的手段.澳大利亚作者曾研究了三个不同类型的硫化镍精矿中铂族元素和金的分离,认为如果充分注意熔化和熔渣的损失,用铅试金—
In recent years, foreign countries in the progress of precious metals analysis, mainly in the common use of fire test gold, new solvent extraction, ion exchange, reversed phase chromatography and other four separation and enrichment methods and chemiluminescence, direct atomization of powder, Inductively coupled plasma light source spectroscopy and other three kinds of determination methods will be summarized as follows: First, the separation and enrichment of precious metals 1 fire test gold: a few months ago from several major countries producing precious metals, the fire test not only the golden rule As a measuring method, and generally as a means of separation and enrichment.Australian authors have studied the separation of platinum group elements and gold in three different types of nickel sulfide concentrate, that if full attention to melting and melting Slag loss, lead test gold -