汪尔康等人曾报导过邻苯二酚紫(简称PV)及其与某些金属络合物的极谱研究。我们较详细地研究了Cu~(2+)、Zn~(2+)与PV络合物的极谱行为。发现在HAc-NaHCO_3(pH_6.4)缓冲介质中当有8×10~(-4)％PV存在下,Cu~(2+)、Zn~(2+)均会产生灵敏的导数极谱波,峰电位分别为-0.50V和-1.20V(相对于银汞齐电极,下同)。研究了络合物的组成、极谱波的性质及其机理。并提出了同时测定血清中微量铜锌的方法。 Wang Erkang and others have reported catechin violet (referred to as PV) and its polarographic studies with certain metal complexes. We investigated the polarographic behavior of Cu ~ (2 +), Zn ~ (2+) complexes with PV in more detail. It was found that both Cu 2+ and Zn 2+ produced sensitive derivative polarographic wave in the presence of 8 × 10 -4 PV in HAc-NaHCO 3 (pH 6.4) buffer solution , The peak potentials were -0.50V and -1.20V (relative to the silver amalgam electrode, the same below). The composition of complex, the nature of polarographic wave and its mechanism were studied. A method for simultaneous determination of trace amounts of copper and zinc in serum was also proposed.