离子色谱法分析环境空气颗粒物中F^-、Cl^-、NO3^-及SO4^2-  

Determination of F^-, Cl^-, NO3^-and SO4^2- in Atmospheric Particulate Matters Using Ion Chromatography

作　　者：杨品[1] 龙庆云[1] 李占强[1] 韦桂欢[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2015年第2期27-30,共4页

摘　　要：建立了一种用于测定空气颗粒物中F^-、Cl^-、NO3^-及SO4^2-含量的离子色谱分析方法。该法以玻璃纤维滤膜采集空气颗粒物样品，以去离子水超声萃取出采样滤膜上的可溶盐，采用离子色谱法同时定性分析四种重要阴离子，并采用标准曲线法进行定量测定。离子色谱法可同时分析四种离子，检出限为0．00017mg／m^3-0．00075mg／m^3，回收率为97．2％～110．2％，相对标准偏差在0．76％～1．9％，可用于环境空气中颗粒物中F、Cl^-、NO3^-及SO4^2-含量分析。A new method using ion chromatography was developed for the determination of F^-, Cl^-, NO3^-and SO4^2- in atmospheric particulate matters. F^-, Cl^-, NO3^-and SO4^2- in atmospheric particulate matters were collected by ultra-thin glass fiber then extracted with deionized water. Finally, ion chromatography was used to analyze the sample solution. The qualitative analysis of F^-, Cl^-, NO3^-and SO4^2- was carried out according to the chromatographic retention time, and the quantitative value was determined by standard curve method. This method realized simultaneous determination of four target ions, the detection limit and the average recovery of which were 0.00017-0.00075 mg/m^3 and 97.2%-110.2%, respectively. The relative standard deviations were between 0.76% and 1.9%. This method could be used to determine of F^-, Cl, NO3^-and SO4^2- in atmospheric particulate matters.

关 键 词：空气颗粒物 F^- Cl^- NO3^- SO4^2- 

分 类 号：O657.7[理学—分析化学]