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本文对铜(Ⅰ)-新亚铜灵-酸性金黄G体系测定铜作了研究,实验表明,在pH=6～10,5,经氯仿萃取配合物后,其摩尔吸光系数为ε_(463)=2.4×10~4 Lmol~(-1)cm~(-1),在10毫升萃取液中含铜量在20微克以内遵守比耳定律,方法的选择性很高。
In this paper, copper (Ⅰ) - neocuproine - acidic G system G was studied. The experimental results showed that the molar extinction coefficient ε_ (463) after the complex was extracted by chloroform at pH = 6 ~ = 2.4 × 10 ~ 4 Lmol -1 cm -1, Beer’s law is obeyed when the content of copper in 10 ml extract is within 20 μg. The selectivity of the method is high.