在线二氧化氮化学发光测定仪的研制  

On-line Chemiluminescence Instrument for Measurement of Nitrogen Dioxide

作　　者：齐斌[1] 王竹青[1] 杨红艳[1] 刘保宜[1] 马艳[1] 杨冰[1] 

机构地区：[1]陕西师范大学化学与材料科学学院,西安710062

出　　处：《分析化学》2010年第4期607-610,共4页Chinese Journal of Analytical Chemistry

摘　　要：基于NO2与鲁米诺溶液的化学发光反应设计制作了在线NO2的化学发光测定仪,并对此仪器进行了优化和表征。仪器由微型流动气液界面化学发光反应器、气液输运系统、化学发光检测系统及数据采集系统组成。此仪器测定NO2的线性范围为5.0×10-11～8.0×10-8(V/V,体积比浓度,下同);峰值响应时间少于1s;时间分辨1s;检出限为5.0×10-11(V/V)。本仪器具有结构简单、体积小、成本低等特点,适用于环境大气中NO2的实时在线测定。An on-line instrument for the measurement of atmospheric NO2 based on chemiluminescence reaction of Luminal with NO2 was developed,optimized and characterized.The instrument is composed of a gas-liquid interface mini-reactor,gas and liquid transportation system,chemiluminescence detection system and data acquisition system.The linear range for NO2 measurement is 5.0×10 11 -8.0×10 -8（V/V,volume ratio,same hereinafter）,peak response time1 s,time resolution is 1 s,and detection limit is 5.0×10-11. The instrument is characterized by simple structure,small size and low cost.

关 键 词：二氧化氮 鲁米诺 化学发光 

分 类 号：X851[环境科学与工程—环境工程]