目前矿石中金的分析国内一般采用试金分析法;活性炭吸附容量法;泡沫吸附原子吸收法等。这些方法的共同缺点是,分析设备昂贵、分析手续复杂,灵敏度低。 我们采取的方法是泡沫吸附富集金—萃取比色法。用泡沫吸附金,硫脲解析后生成稳定的络合物、用王水蒸干破坏络合物,再用有机试剂萃取比色测定。 采用泡沫吸附富集——萃取比色法不须用昂贵设备,操作简便易掌握、提高工 At present, the analysis of gold in the ore generally use assay analysis method; activated carbon adsorption capacity method; foam adsorption atomic absorption method. The common disadvantage of these methods is that the analytical equipment is expensive, the analysis procedures are complicated and the sensitivity is low. The method we use is foam adsorption enrichment gold - extraction colorimetry. Foam adsorption of gold, thiourea resolved after the formation of a stable complex, dried with aqua regia to destroy the complex, and then extracted with organic reagent colorimetric determination. The use of foam adsorption enrichment - extraction colorimetric method does not require expensive equipment, easy to master, improve workers