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钛的测定通常采用硫酸高铁铵容量法或分光光度法,操作较繁琐、且难掌握。本文根据pH=5～6时铅在示波极谱图上有敏锐的切口,试验了一个间接测定钛的新方法。该方法无其它离子干扰时,常量和微量钛的回收率分别为99.80～100.1％及98.20％。在实验的条件下,只有铝干扰,但样品经碱熔可以分离,有色溶液和硅胶不影响终点观测,方法简单、快速、准确。应用于合金及某些矿物中钛的测定,获得了满意的结果。
Determination of titanium usually ammonium ferric sulfate capacity method or spectrophotometry, more complicated operation, and difficult to grasp. In this paper, according to the sharp incisions of lead in the oscillopolarogram at pH = 5-6, a new indirect method for the determination of titanium was tested. When the method is free from interference with other ions, the recoveries of the constant and trace titanium are 99.80 ~ 100.1% and 98.20%, respectively. Under the experimental conditions, only aluminum interference, but the sample can be separated by alkali melting, colored solution and silica gel does not affect the end point of observation, the method is simple, fast and accurate. Applied to the determination of titanium in some alloys and alloys, satisfactory results have been obtained.