摘要
本文研究了在氨水介质中,铜(Ⅱ)催化H_2O_2氧化甲酚红褪色新指示反应及其动力学条件,建立了测定痕量铜的新方法.方法具有高灵敏度和高选择性.线性范围为2 8ng/25ml.检测限为7×10^(-11)g/ml.方法应用于地下水和生物样中铜的测定,结果令人满意.
A Catalytic spectrophotometric method based on the oxidzation of cresd red with H_2O_2 by means of Cu(Ⅱ)as calalyst for the determination of trace Cu(Ⅱ)in ammoin water solution has been developed. The range of determination is 2-8 ng Cu(Ⅱ)/25ml,and detection limit is 7×10^(-11)g/ml (logA_0/A0.01 b=1cm). the effect of foreign icns has been studied and the method shows good seletivity. This method has been applied to determine copper in water and biological samples with satisfactory results.
出处
《淮北煤师院学报（自然科学版）》
1992年第2期26-29,共4页
Journal of Huaibei Teachers College(Natural Sciences Edition)
