离子色谱法同时测定饮用水中氯酸盐、亚氯酸盐和溴化物的研究  

Simultaneous determination of chlorite,chlorate and bromide in drinking water by ion chromatography

作　　者：张桃英[1] 崔悦[1] 赵连佳[1] 屈飞飞[1] 

机构地区：[1]北京市海淀区疾病预防控制中心,北京100094

出　　处：《中国卫生检验杂志》2011年第3期590-591,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立饮用水中氯酸盐、亚氯酸盐和溴化物的离子色谱检测方法。方法:水样经过IonPac AS23型阴离子柱(4×250 mm)、IonPac AG23 4×50 mm保护住,采用ASRS300阴离子抑制器,利用4.5 mmol/L Na2CO3-0.8 mmol/L NaHCO3淋洗液,流速为1.00 ml/min和DS6型电导检测器进行检测。结果:本方法线性良好r,≥0.9996,精密度高(RSD<2%),样品加标回收率为88.0%～104.0%,最低检出量为0.0015 mg/L～0.0018 mg/L。结论:该方法操作简单、快速、准确、灵敏度高,适用于实际水样的测定。Objective：To establish a method for detemination of chlorate,chlorite and bromide residues in drinking water by ion chromatography（IC）.Methods：The separation was performed on an IonPac AS23 analytical column（4×250 mm） and an IonPac AG23 guard column（4×50 mm）with an ASRS300 Suppressor by 4.5 mmol/L sodium carbonate and 0.8 mmol/Lsodium bicarbonate eluent,1.00 ml/min flow rate with a DS6 suppressed conductivity detector.Results：This method had good relativity（r≥0.9996） and good analytic precision（RSD2%）.The samples＇average rates of recovery were 88.0%～104.0% and the detection limit was 0.0015 mg/L～0.0018 mg/L.Conclusion：The method is simple,rapid,accurate and sensitive.Thus it can be used for determination of by-products in the drinking water.

关 键 词：离子色谱法 饮用水 氯酸盐 亚氯酸盐 溴化物 

分 类 号：O657.75[理学—分析化学]