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Automotive Emissions Analysis with Spectroscopic Techniques

Environment: Trace Gas Monitoring

  1. Rainer Hirschberger

Published Online: 15 SEP 2006

DOI: 10.1002/9780470027318.a0704

Encyclopedia of Analytical Chemistry

Encyclopedia of Analytical Chemistry

How to Cite

Hirschberger, R. 2006. Automotive Emissions Analysis with Spectroscopic Techniques. Encyclopedia of Analytical Chemistry. .

Author Information

  1. ISAS Institut für Spektrochemie und angewandte Spektroskopie, Dortmund, Germany

Publication History

  1. Published Online: 15 SEP 2006

Abstract

Quantitative analysis of automotive emissions gives detailed information about a motor's combustion behavior and gives information about the contribution from traffic to air pollution. Following the introduction, which discusses the problems of exhaust gas analysis, section 2 covers the basics of the physical effects, that the different spectroscopic systems are based on. These physical effects are discussed especially with respect to gas analysis.

Section 3 describes the functioning of different spectroscopic systems, the measuring procedures and different examples of exhaust gas analysis. Simple examples are used to illustrate the functioning of Fourier transform infrared (FTIR) and diode laser (DL) systems. The construction of a completely home-made Raman polychromator is described in detail. Specific problem areas are pointed out. Selected examples of exhaust gas analysis show typical applications of the particular methods.

Section 4 discusses the present and future potential of the systems described.