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硫化矿中金银原子吸收光谱法测定国内有过报导,应用也较普遍,但铅金矿、金精矿及其他高硅物料中金银原子吸收光谱法测定往往因试料分解不佳或操作过于繁杂而不受欢迎。我们在考察了金在各种酸溶液中的挥发损失的试验基础上,制定了氢氟酸-硝酸然后王水在聚四氟乙烯烧杯中快速溶样方案,并以二丁基二硫代磷酸铵-乙酸丁酯高选择性地萃取金银,直接用有机相喷雾测定,简化了操作,并使分析精度达到经典火法试金的水平。一条件试验 1 仪器和试剂 WPX-B型原子吸收分光光度计 1%二丁基二硫代磷酸铵-乙酸丁酯溶液;
Sulfide ore gold and silver atomic absorption spectrometry has been reported in the country, the application is also more common, but lead, gold, gold concentrate and other high-silicon materials in the determination of gold and silver atomic absorption spectrometry often due to poor decomposition or operation of the sample Too complicated and unpopular. We examined the gold in a variety of acid solution in the loss of volatile on the basis of the development of hydrofluoric acid - nitric acid and aqua regia Teflon solution in fast beaker, and dibutyl dithiophosphoric acid Ammonium-butyl acetate is highly selective for the extraction of gold and silver and is measured directly with the organic phase spray, simplifying the operation and bringing the analytical accuracy to the level of classic fire test gold. A condition test 1 instruments and reagents WPX-B atomic absorption spectrophotometer 1% dibutyldithiophosphate - butyl acetate solution;