摘要
建立了一种大气中5种水溶阴离子(F-,Cl-,NO2-,NO3-,SO42-)的收集和测定方法。采用冷凝收集的方法,将ZC-Q型便携式大气采样器与定制的半导体冷凝装置联用,收集大气中水溶性阴离子。通过离子色谱法对采集水溶性阴离子的时间、温度和流量3个因素进行优化,样品分析的色谱条件是以Dionex IonPac AS11-HC-4μm作为分析柱,在0~40 min内淋洗液浓度由1 mmol/L随时间线性增加至25 mmol/L,流动相流速为1 mL/min。在最佳的收集条件下,对大气中的5种阴离子进行了收集和测定。
An analytical method for the collection and determination of five soluble anions( F-,Cl-,NO2-,NO3-,SO42-) in the atmosphere was developed. By means of condensation collection,the ZC-Q portable atmospheric sampler and the self-made semiconductor condensing device were combined to collect soluble anionic components in the atmosphere. Using Dionex IonPac AS11-HC-4 μm as an analytical column,three factors( time,temperature,and flow) were optimized for the collection of five soluble anions using ionic chromatography with eluent concentration increased linearly from 1 to 25 mmol/L with time and a mobile phase flow rate of 1 mL/min. Under the optimal collection conditions,the five ions were collected and determined in the air.
作者
虞佐嗣
朱岩
刘于
YU Zuosi;ZHU Yan;LIU Yu(Department of Chemistry,Zhejiang University,Hangzhou 310028;Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province,Zhejiang University,Hangzhou 310028;College of Life Science,Zhejiang University,Hangzhou 310058)
出处
《分析试验室》
CAS
CSCD
北大核心
2021年第7期808-813,共6页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金(21974121)
浙江省自然科学基金(LY21E030015)
浙江省公益技术应用研究(LGC21B050006)项目资助。
关键词
离子色谱
大气
可溶性阴离子
冷凝
ion chromatography
air collection
soluble anions
condensation
