离子色谱法测定生活饮用水中亚氯酸盐、氯酸盐

Determination of chlorite and chlorate in drinking water using Ion chromatography

目的:应用离子色谱检测方法测定生活饮用水中亚氯酸盐及氯酸盐。方法:水样经色谱柱分离,电导检测器检测,保留时间定性,峰面积定量。结果:本方法线性良好,亚氯酸盐r=0.9992,样品加标平均回收率为89.5%～98.9%,相对标准偏差(RSD)0.84%～2.08%,最低检出限为0.15 mg/L。氯酸盐r=0.9998,样品加标平均回收率为95.7%～99.3%,相对标准偏差(RSD)1.11%～1.23%,最低检出限为0.24 mg/L。结论:该方法操作简单、快速、准确、灵敏度高、干扰少,取得满意结果。

Objective：To establish a method for determination of chlorate and chlorite in drinking water by ion chromatography.Methods： The water sample was separated by chromatographic column,determined by conductivity detector,retention time determine the nature,peak area fix quantify.Results： This method had good linearity,Chlorite（r=0.9992）,the sample average recoveries rates were 89.5%～98.9%,the RSD was 0.84～2.08% and detection limit was 0.15 mg/L.Chlorate（r=0.9998） the sample average recoveries rates were 95.7%～99.3%,the RSD was 1.11%～1.23% and detection limit was 0.24 mg/L.Conclusion： This method is sensitive,accurate and fast.