A New UV Photometer for Monitoring NO{sub}x and SO{sub}2 in Combustion Gases

摘要

The poster presents a new photometric method for the measurement of low NO{sub}x concentration. The method is called Differential UV Resonance Absorption Spectroscopy (DUV-RAS) and offers new features compared to the traditional chemiluminescence detector (CLD). Since the method is based on purely physical principle, no auxiliary gases or equipment is necessary.