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在表面活性剂存在下,对双肼苯哒嗪与Co~(2+)的显色反立进行了研究。测定了络合物的组成、不稳定常数及摩尔吸光系数,并对其干扰离子进行了探讨,用于某些药物中钴的测定,结果较满意。
In the presence of surfactants, the anti-coloration of bis-hydralazine and Co 2+ was studied. The composition, unstable constant and molar absorptivity of the complexes were determined. The interference ions were also investigated. The results were satisfactory for the determination of cobalt in some drugs.