NOx DESTRUCTION BY CO IN NOx TO NO CONVERTERS OF CHEMLUMINESCENT NO ANALYZERS

摘要

An instrument modification for Chemiluminescent NO - NOx Analyzers has been developed which minimizes the NOX destruction in the NOx to NO converters of NO analyzers due to high concentrations of CO. This mechanism causes the NO analyzers to indicate incorrect NOx concentrations when the analyzers are operated in the NOx analysis mode. The modi¬fication is applicable to analyzers in which the detection chamber is evacuated.