微分脉冲伏安法测定铅(Ⅱ)——组氨酸络合物稳定常数

Determination of Stability Constants of Complex of Lead(Ⅱ)-Histidine by Differential Pulse Voltammetry

用微分脉冲伏安法在20℃、C、pH7.70的0.50mol/L NaNO_3支持电解质中测定铅(Ⅱ)—组氨酸络合物,获得了该络合物的一级、二级稳定常数为 logβ1∶5.10±0.02和 logβ2∶8.85±0.02。

Determination of stability constants of complex of lead(Ⅱ)-histidine by differential pulse voltammetry with HMDE as working electrode at 20℃ in 0.50 mol/L NaNO_3 solution was made,resultes thus obtained being 5.10±0.02 for log β_1 and 8.85±0.02 for log β2.