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本文采用乙基紫-醋酸丁酯萃取光度法测定微量金。金的含量在2.5—25μg之间,服从比尔定律,表观摩尔吸光系数为1.01×10~(51)·mole~(-1)·cm~(-1)。已用于阳极泥和电镀液中微量金的测定。
In this paper, ethyl violet - butyl acetate extraction spectrophotometric determination of trace gold. The content of gold is between 2.5 and 25 μg. Beer ’s law is obeyed. The apparent molar absorptivity is 1.01 × 10 ~ (51) · mol ~ (-1) · cm ~ (-1). Has been used for the determination of trace amounts of gold in anode slime and plating baths.