【摘要】 本文报道了一个化学发光测定痕量CO（Ⅱ）的新体系。该体系是基于Co（Ⅱ）催化没食子蓝-H₂O₂-OH-反应产生发光。选择了最佳条件。该法对Co（Ⅱ）检测限为O.01μg/L,工作曲线线性区间超过了3个数量级。在四十余种离子中,Fe（Ⅲ）会产生干扰。采用钛铁试剂作掩蔽剂,可允许100倍Fe（Ⅲ）存在。该方法用于测定三氧化钼中的痕量Co（Ⅱ）,结果令人满意。更多还原

【Abstract】 This system is based on the fact that Co（Ⅱ）catalyses the reaction of gallocyanine-H₂O₂-KOH to produce the luminescence. The optimization of conditions and calibration curve data were presented. The detection limit is 0. 01μg/L, and the linear range of the calibration curve extends up to 50μg/L over three orders of magnitude. Of those 40 foreign ions tested, only Fe（Ⅲ）interferes with the determination. 100—fold Fe（Ⅲ）will be tolerated if a maskingagent is adopted. It has been used to determine micro amounts of Co（Ⅱ）in molybdenum trioxide with satisfactory results.更多还原