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-氯乙酸(MCAA)、二氯乙酸(DCAA)、三氯乙酸(TCAA)3种卤乙酸含量。方法:选用lonpacASll阴离子分析柱,0~15mmol/LKOH淋洗液,流速为1.0ml/min,电导检测器。样品经0.45μm滤膜过滤后直接进样。结果:本法相关性好(r=〉0.9991以上),精密度高(RSD%〈5.0),样品加标平均回收率为88.9%~103%,最低检出量0.020~0.025μg/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:An ICS method was applied to simultaneously determine haloacetic acids in drinking water. Methods: The method was based on ICS separation under the condition of isocratic eluent with 0 ~15 mmol/L KOH and flow rate of 1.0 ml/ min by using of the IonPAC AS11 analytical column and suppressed conductivity detector. Results:This method had good relativity (r = 〉0. 9991 ) and good analytic precision (RSD% 〈5.0). The samples'average recoveries were 88.9% - 103% and the detection limit 〈 0. 020 -0. 025μg/ml. Conclusion:Its advantages are simple operation, quickness, high sensitivity and precise results. This method can be applied widely and suitable for trace analysis of water samples.
出处
《中国卫生检验杂志》
CAS
2008年第4期643-644,共2页
Chinese Journal of Health Laboratory Technology
关键词
卤乙酸
离子色谱
水
Ion chromatography
Haloacetic acids
Water