How is NO converted to NO2 for analysis in UV and Visible analyzers?
A. Treating sample gas with pressurized oxygen
B. Treating sample gas with ozone
C. Treating sample gas with oxygen at low pressure
D. Treating sample gas with water at high pressure
Answer:A
How is NO converted to NO2 for analysis in UV and Visible analyzers?
A. Treating sample gas with pressurized oxygen B. Treating sample gas with ozone C. Treating sample gas with oxygen at low pressure D. Treating sample gas with water at high pressure
Explanation: NO is converted into NO2 for analysis in UV and Visible analyzers by treating sample gas with pressurized oxygen. This is because direct measurement of NO is not possible using UV and Visible analyzers.