摘要
目的:建立淋洗液自动发生-离子色谱法直接检测水中2.4-滴的分析方法。方法:采用Dionex IonPac AS19-2 mm阴离子色谱柱,以淋洗液自动发生装置产生的KOH溶液为流动相,梯度淋洗,流速:0.25 ml/min,进样体积:100μl。结果:方法的检出限为5.2μg/L,标准曲线的线性范围为10.0μg/L～100.0μg/L(r=0.9993),加标回收率在89.0%～96.0%之间。结论:实验表明,本方法准确、灵敏、重复性好,结果令人满意。
Objective：To develop a rapid and sensitive method for the determination of 2.4-D in water by Ion Chromatography with On-line Eluent Generator.Methods： The separation was carried out on Dionex IonPac AS19-2 mm anion-exchange column with KOH as the gradient eluent which was produced online by RFIC eluent generator,then the target analytes were detected by the suppressed conductivity detector.Results： The linearity of the method is from 10.0 μg/L to 100.0 μg/L（r=0.9993）.The detection limit was 5.2 μg/L.The recoveries were from 89.0%~96.0%.Conclusion： The experiments verified that the method was simple,sensitive and accurate.
出处
《中国卫生检验杂志》
北大核心
2013年第4期845-846,共2页
Chinese Journal of Health Laboratory Technology
