The gold in blister copper sample was pretreated with nitric acid-sulphuric acid to remove copper, digested with aqua, and determined by flame atom absorbance spectrometry.

• 摘要本文建立了用硝酸－硫酸预处理除去大量的铜，王水溶解，火焰原子吸收法测定粗铜中金的分析方法。