| 摘要 |
A method and apparatus for detecting NOx by chemiluminescence. The apparatus includes a sample gas line having an inlet port for receiving a sample gas, a NOx converter connected to the sample gas line, a N2 diluting gas line connected to the sample gas line upstream from the NOx converter, a bypass exhaust lie connected to the sample gas line, and a chemiluminescence analyzer connected to the NOx converter. The sample gas, which contains a NOx component, is introduced to the sample gas line through an inlet portion. The sample gas is diluted with nitrogen gas from the nitrogen diluting gas line, and the NOx component in the sample gas is converted to NO by the NOx converter. The chemiluminescence analyzer detects the NOx component.
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