一氧化氮中二氧化氮的分析(检气管法)

The Analysis of Nitrogen Dioxide in Nitrogen Oxide by Gas Detection Tube Method

采用检气管法实现了NO中NO2的分析，通过脱氧管纯化载气，分析前加热置换管线的方法，解决了通常条件下NO遇氧即氧化且NO2吸附性强的问题。该法只需简单取样装置及检气管便可简单可靠地实现NO2含量从50×10^-6-10000×10^-6的快速检测，可满足NO产品的分析要求。

Using gas detection tube method, the analysis of NO2 in NO were realized. Through the purification of carrier gas by using oxygen trap and the heating pipeline, resolved the oxidation of NO that encountering oxygen and the strong ad- hesion problem of NO2 in pipeline are resolved . The method needs only a simple sampling device and gas detection tube, NO2 could be detected quickly, the detecting range from 50×10^-6 to 10000 ×10^-6, the method could meet the require- ment of the analysis of NO.