【摘要】 报道了小型氧化铝交换柱分离－电位滴定法测定氢氧化镍中的硫酸根。采用小型氧化铝交换柱将氢氧化镍中的硫酸根定量地与基体的镍分离，然后用铅离子电化学传感器作指示电极，电位滴定法测定硫酸根，对分离条件和滴定条件进行了研究。本方法的检测下限为２×１０－５ｍｏｌ／Ｌ。回收率为９０．３％～１０２．３％。用于实际样品分析，结果满意。更多还原

【Abstract】 Abstrac In this paper ,a determination method of sulfate in Ni(OH) 2 is developed using ion exchange separation and potentiometric titrations..The sulfate is quantitatively separated from Ni(OH) 2 using a mini ion exchange Al 2O 3 column .Then it is potentiometrically titrated using lead electrochemistry sensor as indicator electrode.The condition of the separation and the titration is also studied.The detection limit is 2×10 -5 mol/L.The rate of recovery is 90.3%～102.3% .This method has been used to determine the samples and the results are satisfied.更多还原