[A comparative analysis of two methods of determining superoxide dismutase activity]

Two methods for measuring superoxide dismutase activities are compared, that developed by Nishikimi et al. and by Mistra and Fridovich. The results of both methods showed good correlation in studies of dog red cells (r = +0.999, p less than 0.001) and of intact rat heart tissue (r = +0.996, p less than 0.001).