钴镍-丁二酮肟络合吸附波的研究及应用

Study and Apdlication of the Complex-adsorption WavesCaused by Cobalt and Nickel in Dimethylglyoxime System

在0．32mol／LNH4Ac－NH4OH－0．16mol／LNH2OH·HCI－0．004mol／L丁二酮肟体系中．钴镍有灵敏的络合物吸附波，峰电位分别为-1．20V、-1．10V（VS.甘汞电极），线性范围分别为0.01～0.14μg／25mL、1～12μg／25mL，可用于水样和发样的测定。

There are sensitive complex-absorption waves Caused by Cobalt and Nickel in 0.32 mol/L NH4Ac-NH4OH-0.16 mol/LNH2OH·HCl-0. 004 mol/L Dimethylglyoxime system. The peak potentials are -1. 20 V and -1. 10 V (vs.SCE)respectively.Thelinear range is 0.01-0.14 μ g/25 ml for cobalt and 1～12 μ g/25 ml for Nickel respectively.Ttis can be used in thedetermination of Cobalt and Nickel in water and hair samples.