电沉积法分离^(90)Y及称重法测量其含量的研究

Separation of^(90)Y by electrodeposition and measurement of its content by weighing method

对利用电沉积法从^(90)Sr-^(90)Y平衡溶液中分离医用^(90)Y进行了研究。利用Sr-Y离子溶液模拟出^(90)Sr-^(90)Y平衡溶液并利用称重法计算其电沉积率,从而研究其可行性。以0.15 mol/L并pH 2.5的NH_(4)Cl溶液作为电沉积底液,以铂为阴极与阳极,在电解池中进行电沉积,控制电流密度为0.63 A/cm^(2),电沉积40 min,再用0.5 mol/L的稀盐酸进行洗脱,可得到含Y的溶液。可由此原理性实验得出^(90)Sr-^(90)Y平衡溶液的电沉积分离条件。

The separation of medical^(90)Y from^(90)Sr-^(90)Y equilibrium solution by electrodeposition was studied.The equilibrium solution of^(90)Sr-^(90)Y was simulated by Sr-Y ion solution and its electrodeposition rate was calculated by weighing method to study its feasibility.In 0.15 mol/L and pH 2.5 NH_(4)Cl solution as the electroplating liquid,with platinum as the cathode and anode,electroplating in electrolytic cell,control the current density of 0.63 A/cm^(2),the electrodeposition of 40 min,reoccupy dilute hydrochloric acid of 0.5 mol/L elution,containing Y solution can be obtained.The electrodeposition separation conditions of^(90)Sr-^(90)Y equilibrium solution can be obtained from the principle experiment.