离子色谱法测定地表水和饮用水中亚氯酸盐、溴酸盐和氯酸盐  

Determination of Chlorite,Bromate,Chlorate in Surface Water and Drinking Water by Ion Chromatography

作　　者：窦艳艳[1] 杨丽莉[1] 徐荣[1] 胡恩宇[1] 

机构地区：[1]南京市环境监测中心站,江苏南京210013

出　　处：《环境监测管理与技术》2013年第6期28-30,共3页The Administration and Technique of Environmental Monitoring

基　　金：国家"水体污染控制与治理"重大科技专项基金资助项目(2009ZX07527-001)

摘　　要：采用KOH梯度淋洗离子色谱法测定地表水和饮用水中ClO-2、BrO-3和ClO-3,在试验确定的条件下,3种离子与F-、Cl-、NO-2、NO-3、SO2-4、Br-、I-等7种离子分离度良好。ClO-2、BrO-3、ClO-3在50.0μg/L～1 000μg/L范围内线性良好,检出限分别为5.2μg/L、8.9μg/L、7.6μg/L,环境水样加标平行测定的RSD分别为2.1%～5.4%、4.1%～5.4%、2.5%～4.8%,两个质量浓度水平加标的平均回收率分别为93.7%～96.5%、90.3%～94.8%、98.7%～111%。An ion chromatography method for determining chlorite , bromate and chlorate in surface water and drinking water was studied .The separation of the anions was achieved on an IonPac AS 19 Column with KOH as eluent, the chlorite, bromate, chlorate and other 7 kinds of anions could be well separated and determined within 25 min by employing a concentration gradient .The method has good linearity during the concentration 50.0 μg/L ~1 000 μg/L.The method detection limits of chlorite, bromate and chlorate was 5.2 μg/L, 8.9 μg/L and 7.6 μg/L, respectively.The RSD of the samples were 2.1%~5.4% （ chlorite）, 4.1%~5.4%（bromate）, and 2.5%~4.8% （chlorate）.The recoveries of chlorite, bromate and chlorate in water samples were 93.7%~96.5%, 90.3%~94.8%and 98.7%~111%.

关 键 词：亚氯酸根 溴酸根 氯酸根 离子色谱法 地表水 饮用水 

分 类 号：O657.75[理学—分析化学]