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研究了在Na_2HPO_4_NaOH介质中,Mn(Ⅱ)催化高碘酸钾氧化镁试剂1[4-(对硝基苯偶氮)间苯二酚〕的反应及其动力学条件,建立了一种高灵敏、高选择性测定痕量Mn(Ⅱ)的新方法.可测0.01～2.5μg/25mL范围的锰(Ⅱ),方法的检测限为6.43×10~(-11)g/mL.
The reaction and kinetic conditions of Mn (Ⅱ) -catalyzed potassium periodate and magnesia reagent 1 [4- (p-nitrophenylazo) resorcinol] in Na_2HPO_4_NaOH media were studied, and a highly sensitive , A new method for the determination of trace Mn (Ⅱ) with high selectivity.The detection limit of manganese (Ⅱ) in the range of 0.01 ~ 2.5μg / 25mL was 6.43 × 10 ~ (-11) g / mL.