离子色谱法测定环境空气颗粒物中水溶性阴离子  

Determination of the Water-Soluble Anions From Atmospheric Particles by Ion Chromatography

作　　者：罗鑫 董黎静 刘明元 Luo Xin;Dong Lijing;Liu Mingyuan(Environmental Monitoring Center of Jiangsu Changzhou,Changzhou,Jiangsu 213000,China;Jiangsu Longhuan Environmental Science Co.,LTD,Changzhou,Jiangsu 213000,China)

机构地区：[1]江苏省常州环境监测中心,江苏常州213000 [2]江苏龙环环境科技有限公司,江苏常州213000

出　　处：《绿色科技》2021年第6期132-134,共3页Journal of Green Science and Technology

摘　　要：通过测试全程序空白、标准回归曲线、检出限等对离子色谱法测定环境空气颗粒物中F^(-)、Cl^(-)、NO_(2)^(-)、Br^(-)、NO_(3)^(-)、PO_(4)^(-)、SO_(4)^(2-)7种水溶性阴离子进行了方法验证。结果表明:一定浓度范围内的线性回归较理想,准确度和精密度较好。滤膜样品采样体积以60 m^(3)(标准状态)计,检出限为0.009~0.029μg/m^(3),降尘样品取样量以0.1000 g计,检出限为0.006~0.018 mg/g,均能满足标准的要求。采用该方法测定了常州市某些点位的环境空气颗粒物及降尘中7种阴离子浓度,也有较好的适用性。In this paper,the method of determination of the water-soluble cations(F^(-),Cl^(-),NO_(2)^(-),Br^(-),NO_(3)^(-),PO_(4)^(-),SO_(4)^(2-))from atmospheric particles by ion chromatography was verified by testing the overall blank,the standard regression curve and the detection limit.Experimental results showed that,the precision,the accuracy and other technical indicators were good.When the sampling volume is 60 m^(3)(in the standard state),the detection limit is between 0.009μg/m^(3)~0.029μg/m^(3).When the sampling amount is 0.1000g,the detection limit is between 0.006mg/g~0.018mg/g.This method was used to determine of the water-soluble anions from atmospheric particles in some parts of Changzhou City,and it has good applicability.

关 键 词：离子色谱法 颗粒物 水溶性阴离子 

分 类 号：X501[环境科学与工程—环境工程]