Abstract:

A method for the determination of ClO₂^- in water by SHIMADZU ion chromatography and Shodex ion chromatographic column has been established. When ClO₂^- mass concentration is in range of 0.20-2.00 mg/L, the method has good linear dependence relation. The correlation coefficient R² is 0.999 9, lowest detection limit 0.013 mg/L, average recovery rate 93.63% and average relative standard deviation 0.52%, without obvious difference. The method has high accuracy and good precision, being good for the detection of chlorite in drinking water.

Key words: ion chromatography, chlorite, drinking water

摘要：

基于岛津离子色谱仪和Shodex色谱柱，建立了一种测定水中ClO₂^-的方法。该方法在ClO₂^-质量浓度为0.20~2.00 mg/L范围内有良好的线性相关性，相关系数R²=0.999 9，最低检出质量浓度为0.013 mg/L，平均加标回收率为93.63%，平均相对标准偏差为0.52%，无显著性差异。该测定方法具有较高的准确度和较好的精密度，可很好地测定饮用水中的ClO₂^-。

关键词: 离子色谱, 亚氯酸根, 饮用水

CLC Number: 

• R123.1