离子色谱法测定饮用水中痕量溴酸盐  

DETERMINATION OF TRACE BROMATE IN DRINKING WATER BY ION CHROMATOGRAPHY

作　　者：方敏 陈静 陈艳[2] 

机构地区：[1]上海市自来水市北有限公司水质中心,上海200086 [2]浙江省环境保护科学设计研究院,杭州310007

出　　处：《化学分析计量》2011年第1期74-75,共2页Chemical Analysis And Meterage

摘　　要：建立了一种利用离子色谱法测定饮用水中痕量溴酸盐(BrO3-)的方法。色谱条件为:IonPac AS19(250mm×4 mm)色谱柱分离,KOH梯度淋洗,流速1.0 mL/min,抑制电导检测,外标法定量。BrO 3-浓度在2.0～100μg/L范围内有良好的线性,检出限为0.3 ng/mL,相关系数r=0.9999,加标回收率为98.5%～102%。该方法适合于饮用水中痕量溴酸盐的测定。A method was developed for the determination of bromate （ BrO3^- ） in drinking water by ion chromatography （ IC ）. The analytical column was Dionex IonPac AS19 （250 mm ×0.4 mm）, gradient KOH was used as the eluent at a flow rate of 1.0 mL/min. The detection was performed by a suppressed conductive detector. The quantitive analysis of external standard calibration curves was used. The linear range for BrO3-was 2.0 -50 μg/mL, the correlation coefficient was 0.9999. The detection limits（ S/N = 3 ） was 0.3 ng/mL. The average recoveries were 98.5% - 101.0%. The method is suitable for determining the trace bromate in drinking water.

关 键 词：离子色谱法 饮用水 溴酸盐 

分 类 号：X832.02[环境科学与工程—环境工程]