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含量。方法:选用IonpacAS11阴离子分析柱,0-12 mmol/L KOH淋洗液,流速为1.0 ml/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),精密度高(RSD%<5.0),样品加标平均回收率为90.0%-104%,最低检出量0.012μg/ml。结论:该法操作简单、快速、准确、灵敏、适用于大批样分析。
Objective：An ICS method was applied to simultaneously determine iodide in drinking water. Methods：The method was based on ICS separation under the condition of isocratie eluent with 0 - 15 mmoL/L KOH and flow rate of 1.0 mL/min by using the IonPAC ASll 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 rates were 90. 0% - 104% and the detection limit 〈0. 012 μg/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
2007年第5期788-788,911,共2页
Chinese Journal of Health Laboratory Technology
关键词
氯乙酸
离子色谱
水
Ion chromatography
Chloroaetic acid
Water
