Chapter 25. Chemical Analysis
Gas Analysis
C.K. Laird and I. Verhappen

25.1. Introduction

The ability to analyze one or more components of a gas mixture depends on the availability of suitable detectors that are responsive to the components of interest in the mixture and that can be applied over the required concentration range. Gas detectors are now available that exploit a wide variety of physical and chemical properties of the gases detected, and the devices resulting from the application of these detection mechanisms show a corresponding variety in their selectivity and range of response. In a limited number of applications it may be possible to analyze a gas mixture merely by exposure of the sample to a detector that is specific to the species ...

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