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A Controlled-Environment Chamber for Atmospheric Chemistry Studies Using FT-IR Spectroscopy

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Abstract:

A one-meter-diameter, Teflon®-coated, stainless steel sphere has been constructed as a tool for conducting studies of the atmospheric chemistry of toxic chemicals. The temperature can be controlled from 5 to 50°C. The chamber can be evacuated to 5 × 10−6 Torr. Gas samples can be introduced from an external manifold. Solid samples of various kinds can be placed into the interior of the chamber through a 12-in. sampling port to determine their effects on gases under study. The chamber is equipped with an in situ, multipass optical system which allows an infrared pathlength of 106 m to be used for the analysis of chemical species.

Keywords: Atmospheric simulation; Controlled-environment chamber; Long-path FT-IR spectroscopy

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904086885

Affiliations: Environics Division, Engineering and Services Laboratory, Air Force Engineering and Services Center, Tyndall Air Force Base, Florida 32403-6001

Publication date: July 1, 1990

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