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Gas Cuvette for Fourier Transform Infrared Spectrometer

IP.com Disclosure Number: IPCOM000099502D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 1 page(s) / 32K

Publishing Venue

IBM

Related People

Berger, D: AUTHOR

Abstract

The figure shows a schematic cross-sectional view of the cuvette. A cylindrical stainless steel tube 1, which is gold-plated inside, has a concentric enlargement 2 at its two ends. Two KBr windows 3 are inserted in enlargements 2 and are axially forced against the center part of tube 1 by bored screw caps 4; tight sealing being achieved by rings 5. The gas to be analyzed is admitted to tube 1 through gas inlet 6 and escapes through gas outlet 7. A stream of purging gas is admitted to one of the enlargements 2 through gas inlet 8, purging the periphery of one KBr window 2 and flowing through gas outlet 9, a thin tube 10 and through gas inlet 11 into the other enlargement 2, where it purges the periphery of the other KBr window 3 to escape through gas outlet 12.

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Gas Cuvette for Fourier Transform Infrared Spectrometer

       The figure shows a schematic cross-sectional view of the
cuvette.  A cylindrical stainless steel tube 1, which is gold-plated
inside, has a concentric enlargement 2 at its two ends.  Two KBr
windows 3 are inserted in enlargements 2 and are axially forced
against the center part of tube 1 by bored screw caps 4; tight
sealing being achieved by rings 5. The gas to be analyzed is admitted
to tube 1 through gas inlet 6 and escapes through gas outlet 7.  A
stream of purging gas is admitted to one of the enlargements 2
through gas inlet 8, purging the periphery of one KBr window 2 and
flowing through gas outlet 9, a thin tube 10 and through gas inlet 11
into the other enlargement 2, where it purges the periphery of the
other KBr window 3 to escape through gas outlet 12.

      The cuvette is suitable for trace analysis of reactive gases in
a Fourier transform infrared spectrometer.