离子色谱法测定居住区大气中硝酸盐的研究  

Determination of nitrate in air of residential areas by ion chromatography

作　　者：王新丽[1] 

机构地区：[1]辽宁省沈阳市铁西区疾病预防控制中心,沈阳110021

出　　处：《中国卫生检验杂志》2012年第4期719-720,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立了居住区大气中硝酸盐的离子色谱法(IC)分析方法。方法:本文采用玻璃纤维滤膜采集居住区大气中硝酸盐,用高纯水超声洗脱,经色谱柱分离,电导检测器检测,保留时间定性,峰高或峰面积定量。结果:硝酸盐的检出限为0.009 mg/L,测定下限为0.029 mg/L。若以0.1 m3/min流量采气144 m3,该方法对硝酸盐的测量范围为0.010μg/m3～28μg/m3。结论:本方法快速、准确,具有较低的检出限,可用于居住区大气中硝酸盐的检测。Objective：To establish an ion chromatography method for the determination of nitrate in air of residential areas.Methods：The suspended particulate matter was collected on the glass fibre filter,ultrasonic elution with high pure water,and then determined by ion chromatography with electric conductivity detector,nitrate could be identified by elution time and quantified by peak height or peak area.Results：The limit and low limit of detection for nitrate were 0.009 mg/L and 0.029 mg/L,respectively.Nitrate could be determined in the range of 0.010 μg/m3~28 μg/m3 when 144 m3 air was collected at the flow of 0.1 m3/min.Conclusion：This method is rapid,accurate and sensitive,which can be applied for analysis of nitrate in air of residential areas.

关 键 词：硝酸盐 居住区大气 离子色谱法 

分 类 号：O657.75[理学—分析化学]