摘要
目的:建立离子色谱法测定食物中毒样品如呕吐物、尿液中NO2-含量的方法。方法:样品通过系统预处理,选用Dionex Ionpac AS19-2mm型分析柱,RFIC淋洗液在线发生器在线生成KOH淋洗液进行梯度淋洗,抑制型电导检测器,进样体积为150μl。结果:本方法NO2-最低检出限:14μg/L,回收率在96%～106%之间。结论:本法操作简单,灵敏度高,重现性好。
Objective：Determination the content of NO2- in samples of food-poisoning such as urine and vomitus by ion chromatography.Methods：The sample after systemic pretreatment,the antibiotics were separated on DIONEX Ionpac AS19-2mm with KOH as the gradient eluent which was produced online by RFIC eluent generator detected by the suppressed conductivity detector in the method,with the injection volume of 150 μl.Results： The method detection limits of NO2- was 14 μg/L.The recovery rate were between 96%and 106%.Conclusion： The method is simple,accurate and reliable.
出处
《中国卫生检验杂志》
CAS
2010年第12期3158-3159,共2页
Chinese Journal of Health Laboratory Technology
基金
广州市医学科研课题(2009-YB-123)
