Fast Exhaust Gas Probe for Multicomponent Analysis: Scientific/Technical Principle
作者： Ulrich Boesl , Christian Weickhardt , Ralf Zimmermann , Stefan Schmidt , Holger Nagel
DOI: 10.4271/930083
关键词: Sampling (signal processing) 、 Exhaust gas 、 Analytical chemistry 、 Sensitivity (control systems) 、 Reflectron 、 Tunable laser 、 Chemistry 、 Test method 、 Process engineering 、 Mass spectrometry 、 Measuring instrument
摘要: A new analytical method for the automobile industry has been developed using a pulsed tunable laser system and Reflectron time-of-flight mass spectrometer. The goal was to achieve following conditions: High time resolution (less than 100 ms), high sensitivity (down 1 ppm), accuracy (10%) applicability most exhaust emission components. main problem is large number of components with very different fast varying concentrations. For preliminary list 25 components, all necessary parameters have determined. First results obtained from real gas sample will be presented. (A) covering abstract see IRRD 858138.
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