A new method for atmospheric nitrogen dioxide measurements using the combination of a stripping coil and fluorescence detection

被引:7
作者
Chen, XY [1 ]
Oro, Y [1 ]
Tanaka, K [1 ]
Takenaka, N [1 ]
Bandow, H [1 ]
机构
[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Mat Sci, Sakai, Osaka 5998531, Japan
关键词
D O I
10.2116/analsci.20.1019
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new stripping coil for the collection of nitrogen dioxide (NO2) has been developed to increase its versatility and efficiency. Nitrogen dioxide measurements based on quantitative collection through a reaction coil into an alkaline solution has been examined. Nitrogen dioxide is collected in a 0.1 N NaOH solution. This collection system has an efficiency of nearly 100%. The absorbed nitrogen dioxide has been measured by fluorescence detection with sub-ppbv detection limits. The excitation wavelength at 360 nm and the produced emission wavelength at 405 nm were suitable for nitrite ion measurements.
引用
收藏
页码:1019 / 1023
页数:5
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