Correlation Transform Spectroscopy

D. E. Honigs; J. H. Perkins

doi:10.1117/12.970715

20 December 1985 Correlation Transform Spectroscopy

D. E. Honigs, J. H. Perkins

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970715
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

Abstract

As a spectroscopist, one rapidly learns that obtaining a spectrum of a sample is only part of the work. Many times the real challenge comes in interpreting the spectrum. In correlation transform spectroscopy, commonly referred to as near-infrared analysis, a large emphasis is placed on the data interpretation phase. To make the spectral results intelligible to the analyst, near-infrared analysis correlates a series of spectra with the known analyte concentration. This correlation transforms the spectra so that the relationship between the analyte and the spectra is displayed. This process can be extended to deduce the spectrum of a pure component from those of mixtures, or to deduce the analyte concentration in an unknown sample. Interestingly, near-infrared analysis has shown that surprisingly little spectral resolution is required to quantitate many analytes. Thus, instrumentation designs are being developed which make use of very broad filters made of polymers or other materials. These instruments provide spectral information in much the same way that the eye does.

Citation Download Citation

D. E. Honigs and J. H. Perkins "Correlation Transform Spectroscopy", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970715

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