摘要
目的:建立简便快速梯度淋洗离子色谱法测定饮用水中一溴乙酸(MBAA)、二溴乙酸(DBAA)、溴酸盐(BrO3-)。方法:选用IonPac AS18阴离子分析柱,0～45 mmol/L KOH淋洗液,流速为1.0 ml/min,电导检测器检测。样品经0.45μm滤膜过滤后直接进样。结果:本法线性相关性好(r≥0.9990),精密度好(RSD<5.0%),样品加标平均回收率为87.0%～101.0%,最低检出量0.006μg/ml～0.025μg/ml。结论:该法操作简单、快速、准确、灵敏、适用于大批水样分析。
Objective：To establish an ion chromatographic method for simultaneous determination of bromate,monobromocetic acid and dibromoacetic acid in drinking water.Methods：The separation was carried on IonPAC AS11 analytical column with isocratic eluent of 0～45 mmol/L KOH and flow rate of 1.0 ml/ min and detected by suppressed conductivity detector.Results： The method had good linear correlation（r≥0.9990） and precision（RSD 5.0%）.The average recoveries were 87.0%～101.0% and the detection limits were in the range of 0.006 μg/ml～0.025 μg/ml.Conclusion： The method is simple,quick,sensitive and precise,and is suitable for the analysis of monobromocetic acid,dibromoacetic acid and bromate in drinking water.
出处
《中国卫生检验杂志》
CAS
2010年第12期3154-3155,共2页
Chinese Journal of Health Laboratory Technology
基金
宁波市重点实验室建设基金(2008A22002)
关键词
一溴乙酸
二溴乙酸
溴酸盐
离子色谱法
饮水
Monobromocetic acid
Dibromoacetic acid
Bromate
Ion chromatography
Drinking water
