The amount of free ions and labile complexes of copper has been determined and the apparent stable constants have been calculated in a proteose peptone medium by anodic stripping staircase voltammetry ( assv ) 采用阳极阶梯溶出伏安法,测定了蛋白胨细胞生长液中的易变形态铜,并获得了总铜量中易变形态的摩尔分数以及易变形态的表观稳定常数。