离子色谱法对饮用水中部分消毒副产物含量测定

Determination on content of disinfection by-products in drinking water by ion chromatography method

目的建立饮用水中消毒副产物浓度测定方法,为饮用水水质监测提供参考。方法采用离子色谱法,对市场供水中消毒副产物二氯乙酸、三氯乙酸含量进行测定,以验证该方法的准确性。结果采用本研究建立的离子色谱法条件测定结果表明,对水样中二氯乙酸、三氯乙酸均能得到良好结果,标准曲线范围为2. 5μg/L^500. 0μg/L,检出限为1. 0μg/L。结论本研究建立的离子色谱方法操作简单,检测结果可靠,线性范围宽,具有良好的准确度及精密度。

Objective To establish a method for the determination the content of disinfection by-products in drinking water,and provide reference for water quality surveillance.Methods Ion chromatography method was used to detect the content of dichloroacetic acid and trichloroacetic acid in water,so as to verify the accuracy of the method.Results The results showed that dichloroacetic acid and trichloroacetic acid could get good results by ion chromatography.The linear range was from 2.5μg/L to 500.0μg/L,the detection limit was 1.0μg/L.Conclusion The ion chromatography method developed in our study is simple,reliable,and has wide linear range,good accuracy and precision.