Skip to main content

Application of Dynamical Analysis Techniques in the Extraction of Compound-Specific Information from Fourier Transform Infrared Interferograms

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

An automated compound-detection procedure is described that is based on the application of dynamical analysis techniques to digitally filtered Fourier transform infrared interferogram data. With the use of benzene as a test analyte, surface-of-section maps are computed from the filtered data. This calculation is resistant to phase variation in the interferograms and serves to remove the oscillating component of the filtered signal. Information regarding the overall shape or profile of the signal is enhanced, thereby resulting in an improved sensitivity for distinguishing analyte information from that due to interferences. Data vectors constructed from the surface-of-section maps are examined by use of principal component analysis. Linear discriminant analysis is then used to implement an automated algorithm for detecting benzene in the presence of nitrobenzene. When tested with data not included in the discriminant development computations, the computed linear discriminants are shown to perform with a detection accuracy of greater than 99%.

Keywords: Fourier transform infrared spectroscopy; Interferogram analysis; Signal processing

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702924123449

Affiliations: 1: Center for Intelligent Chemical Instrumentation, Department of Chemistry, Clippinger Laboratories, Ohio University, Athens, Ohio 45701-2979; present address: Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439-4837 2: Center for Intelligent Chemical Instrumentation, Department of Chemistry, Clippinger Laboratories, Ohio University, Athens, Ohio 45701-2979

Publication date: December 1, 1992

More about this publication?
sas/sas/1992/00000046/00000012/art00006
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more