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本文报告亚化学计量库仑法测定钯的条件,底液为0.5MH_3PO_4—0.1MNa_2HPO_4,工作电极为蜡浸石墨电极,当[Pd~(2+)]为10~(-5)—10~(-2)时,I_c=5.00mA,t_c=300秒。I_a=1.00mA。样品测定结果与重量法相符。
In this paper, the conditions for the determination of palladium by substoichiometric Coulometric method were reported. The bottom solution was 0.5MH_3PO_4-0.1MNa_2HPO_4 and the working electrode was a wax-impregnated graphite electrode. When [Pd 2+] was 10 -5 -1 -10 ~ 2), I_c = 5.00mA, t_c = 300 seconds. I_a = 1.00mA. The result of the sample is in accordance with the gravimetric method.