FTIR Gas Spectra & Software
Product Description
The FTIR spectra of gases and quantitative software consists
of 580 digitized quantitative gas reference spectra. The
spectra will permit the computation of concentrations from
a sample spectrum without the need for any other
calibration. An accompanying reference manual presents the
spectra at 0.5cm-1 resolution while the digitized spectra
can be displayed at resolutions of either 0.5cm-1 or
1.0cm-1. A simple mouse click permits
easy interchange between resolutions. The data incorporated
with the spectra includes all quantitative parameters.
These parameters may be changed to suit a particular
analytical investigation. The principal quantitative method
used with the software is the Region Integration and
Subtraction (RIAS) program. RIAS is provided with the
database and operates within a GRAMS operating software
environment. RIAS automatically quantifies the extracted
spectral details. Even complex mixtures of gases that have
overlapping infrared spectra can be analyzed with
parts-per-billion sensitivity. Each spectra of the measured
compound can be easily removed from the sample spectra. The
data system will continue to identify and measure as many
compounds as are designated in the program. With RIAS, one
can measure any compound that has an available digitized
reference spectrum. The classical least squares method
(CLS) is available for those desiring this technique. The
program also allows the selection of integration regions
and zeroing regions for complete removal of water absorption
or other disturbing bands. An index can be made available
upon request.
The order details offer two options. Each option provides
for the issuance of a single user license. Network or
multiple license agreements are available upon request.
The first option corresponds to Part No. 9525 describing a
database of 580 digitized gas reference spectra,
reference manual and quantitative program.
The second option corresponds to Part No. 9526 describing
a database of 580 digitized gas reference spectra and
reference manual.
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