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饮用水中消毒副产物的问题日益受到重视。亚氯酸盐、氯酸盐可引起溶血性贫血,并降低精子的数量与活力。毒性更大的BrO3-及溴代奴仿的产生则与Br-关系密切[1];1993年WHO公布的《国际饮用水水质准则》中已经涉及了ClO2-,Br-,ClO3;1993年美国饮用水水质标准中已把消毒副产物作为独立的条例,其中ClO2的浓度不得超过1mg/L[2-3]。2001年我国即将颁布的饮用水法ClO2-,Br-、ClO3-的浓度不得超过0.2mg/L。Br-,ClO2-无相应标准。 ClO2-,Br-、ClO3-,传统测定方法有滴定法[4]、分光光度法、电化学法。传统方法灵敏度差,操作繁琐。我们用离子色谱法,一次进样,18min内完成对ClO2-,Br-、ClO3-的测定,准确度在81.6％-110％之间,日间RSD在1.67％-7.89％之间,检出
The problem of disinfection by-products in drinking water is gaining more and more attention. Chlorite, chlorate can cause hemolytic anemia, and reduce the number of sperm and vitality. The more toxic BrO3- and brominated slaves appear to be closely related to Br-1; the ClO2-, Br-, and ClO3 have been included in the 1993 International Standards for Drinking-water Quality published by the WHO; and the United States Drinking water quality standards have disinfection by-products as an independent regulation, which ClO2 concentration must not exceed 1mg / L [2-3]. In 2001 China’s forthcoming promulgation of drinking water method ClO2-, Br-, ClO3- concentration shall not exceed 0.2mg / L. Br-, ClO2- No corresponding standard. ClO2-, Br-, ClO3-, the traditional determination of titration method [4], spectrophotometry, electrochemical method. Sensitivity of the traditional method is poor, cumbersome operation. We use ion chromatography, a sample injection, completed within 18min ClO2-, Br-, ClO3- determination accuracy of 81.6% -110%, daytime RSD between 1.67% -7.89%, was detected