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本方研究了在NaHCO_3-NaOH介质中,钴(Ⅱ)对过氧化氢氧化铬天青S反应的催化作用,建立了测定痕量钴(Ⅱ)的新催化光度法.线性范围为0-0.1μgCo/25ml,检出限为7.80×10~(-11)g/ml,并用于维生素B_(12)中钻(Ⅱ)的测定.
This paper studied the catalytic effect of cobalt (Ⅱ) on the reaction of azodicarbonamide with hydrogen peroxide in NaHCO 3-NaOH and established a new catalytic spectrophotometry for the determination of trace cobalt (Ⅱ). The linear range was 0-0.1 μg Co / 25ml, the detection limit was 7.80 × 10 ~ (-11) g / ml, and was used for the determination of diamond (Ⅱ) in vitamin B_ (12)