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某些二安替比林甲烷的芳香族衍生物作为钒、铈、铬的光度试剂已有报道,但因灵敏度不高,应用受到一定限制。自从章道昆等发现 Mn(Ⅱ)对该类试剂的显色反应有催化作用和徐其亨等发现 Mn(Ⅱ)和表面活性剂的协
Aromatic derivatives of some dianilibenzene have been reported as photometric reagents of vanadium, cerium and chromium, but the application is limited due to their low sensitivity. Since Zhang Daokun et al. Found that Mn (II) has a catalytic effect on the color reaction of such reagents, Xu et al. Found that Mn (II) and surfactant