12. Instruments for Multiple Specific Gases and Vapors: GC, GC/MS, and IR

  1. Henry J. McDermott

Published Online: 11 OCT 2004

DOI: 10.1002/0471670588.ch12

Air Monitoring for Toxic Exposures, Second Edition

Air Monitoring for Toxic Exposures, Second Edition

How to Cite

McDermott, H. J. (2004) Instruments for Multiple Specific Gases and Vapors: GC, GC/MS, and IR, in Air Monitoring for Toxic Exposures, Second Edition, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471670588.ch12

Author Information

  1. H. J. McDermott, Inc., Moraga, California, USA

Publication History

  1. Published Online: 11 OCT 2004
  2. Published Print: 3 SEP 2004

ISBN Information

Print ISBN: 9780471454359

Online ISBN: 9780471670582

SEARCH

Keywords:

  • gas chromatograph;
  • mass spectrometer;
  • infrared analyzer;
  • packed column;
  • capillary column;
  • Fourier transform infrared;
  • calibration

Summary

This chapter describes portable direct reading instruments that can identify and measure the concentration of specific compounds in an airborne mixture. Basically this includes two types of instruments: Gas Chromatograph (GC) or GC/Mass Spectrometer (GC/MS) devices that separate the airborne compounds so that each can be identified and its concentration measured as the separated compounds pass through the detector; and Infrared (IR) instruments where the wavelength of the IR radiation emitted by the instrument can be adjusted to match the wavelength of IR radiation that specific chemical compounds absorb.