Journal ArticleDOI
Factor Analysis Applied to Fourier Transform Infrared Spectra
TLDR
The feasibility of applying the methods of factor analysis to Fourier transform infrared spectra is examined in this article, where the method is designed to determine the number of components contributing to a spectral region.Abstract:
The feasibility of applying the methods of factor analysis to Fourier transform infrared spectra is examined. The method is designed to determine the number of components contributing to a spectral region. The technique has been applied to a model system consisting of solutions of p-, o-, and m-xylenes. The method has also been used for calculating the number of independently absorbing species in several polymer systems. Spectral requirements and the general applicability of factor analysis are also discussed.read more
Citations
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Book ChapterDOI
Fourier Transform Infrared Spectroscopy
TL;DR: In this article, the authors describe the common liquid sampling accessories and applications of solution state FTIR spectroscopy to lignins, and the reader is referred to Chapter 4.1.
Journal ArticleDOI
Concerning the Application of FT-IR to the Study of Coal: A Critical Assessment of Band Assignments and the Application of Spectral Analysis Programs
Paul C. Painter,Randy W. Snyder,Michael Starsinic,Michael M. Coleman,Deborah W. Kuehn,Alan Davis +5 more
TL;DR: In this article, the problems associated with the application of FT-IR to the characterization of coal structure are critically discussed and the controversies concerning band assignments are considered and it is concluded that the strong 1600 cm−1 band can be assigned to an aromatic ring stretching mode that in most coals is intensity enhanced by the presence of phenolic groups.
Book ChapterDOI
Vibrational spectra of carbohydrates.
TL;DR: This chapter describes the various aspects of the vibrational spectra of carbohydrates, and the analysis of crystallographic results shows the important role played by anomeric center in the structure of sugars.
Journal ArticleDOI
Precision in Condensed Phase Vibrational Spectroscopy
TL;DR: In this paper, an algorithm for the computation of bandwidths and center of gravity and least-squares frequencies with maximum uncertainties of hundredths or thousandths of a wave number is presented.
Journal ArticleDOI
Near-Infrared Analysis (NIRA): A Technology for Quantitative and Qualitative Analysis
TL;DR: The near-infrared (NIR) region was the first non-visible portion of the spectrum to be found, in 1800, by Herschel [1] as discussed by the authors.
References
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Journal ArticleDOI
Self Modeling Curve Resolution
TL;DR: In this paper, a method for determining the shapes of two overlapping functions f 1 (x) and f 2(x) from an observed set of additive mixtures is presented.
Journal ArticleDOI
Computation of equilibrium constants for multicomponent systems from spectrophotometric data
Journal ArticleDOI
Application of Fourier Transform Infrared Spectroscopy to Chemical Systems
TL;DR: In this paper, Fourier transform infrared spectroscopy (FTIR) is used to improve the quality of the spectra of the desired components and the role of FTIR in analytical chemical laboratory.
Journal ArticleDOI
Fourier Transform Infrared Study of Plasticized and Unplasticized Poly(vinyl chloride)
D. L. Tabb,J. L. Koenig +1 more
TL;DR: The molecular structure of polyvinyl chloride (PVC) has been examined in this paper, showing that the crystalline regions are not solvated by the plasticizer, and this possible results in complex formation of the type C=O...Cl-C between the carbonyl of the plasticization and the chloride atom of PVC.