Atmospheric Trace Gas Measurements Using Matrix Isolation - FTIR Spectroscopy

David W . T . Griffith; Ernst Berger; Dieter Ihrig; Gerhard Schuster

doi:10.1117/12.970864

20 December 1985 Atmospheric Trace Gas Measurements Using Matrix Isolation - FTIR Spectroscopy

David W . T . Griffith, Ernst Berger, Dieter Ihrig, Gerhard Schuster

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970864
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

Abstract

The technique of matrix isolation combined with Fourier transform infrared spectroscopy has been developed as a sensitive method for atmospheric trace gas analysis. Matrices of solid CO2 are grown at 77K using natural CO2 as the matrix material, in which the atmospheric trace gases are embedded. Analysis of the matrix by FTIR absorption spectroscopy yields simultaneous measurements of a wide range of atmospheric trace gas species, including unstable and reactive ones, with detection limits typically around 101i molecules or 10-11 mixing ratio from a 20-40 litre air sample.

Citation Download Citation

David W . T . Griffith, Ernst Berger, Dieter Ihrig, and Gerhard Schuster "Atmospheric Trace Gas Measurements Using Matrix Isolation - FTIR Spectroscopy", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970864

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