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大量锌中微量镉广泛采用示波极谱测定,但微量钴的极谱测定虽有报导都不适用于大量锌中钴的测定,因Co~(2+)、Zn~(2+)的峰电位相近。我们以1—亚硝基—2萘酚作催化剂,于10％柠檬酸铵—2.4M氨—0.004％1—亚硝基—2萘酚底液中,测定钴(Co~(3+))的催化波,峰电位为-0.5伏,用于锌湿法冶金过程中的除钴液、新液中微量钴的测定,得到满意结果,快速且稳定。混合底液:取50毫升50％柠檬酸铵液
A large number of zinc in the cadmium widely used oscillopolarographic polarographic determination of trace cobalt Polarographic Although not reported for a large number of cobalt in the determination of cobalt, due to Co ~ (2 +), Zn ~ (2) peak Potential similar. We used 1-nitroso-2-naphthol as a catalyst in the determination of cobalt (Co 3+) in 10% ammonium citrate-2.4M ammonia-0.004% 1- Of the catalytic wave, the peak potential of -0.5 volts, for the zinc hydrometallurgical process in addition to cobalt solution, the determination of trace cobalt in new liquid, get satisfactory results, fast and stable. Mixed base solution: Take 50 ml of 50% ammonium citrate solution