Application of 2D-correlation spectroscopy method for interpretation of spectra and
enhancing the spectral resolution
Maksimova Ekaterina Andreyevna
The basic appraoch of 2-D correlation spectroscopy was initially introduced by Dr. I. Noda [1].
At the beginning correlation analysis was applied only to macromolecular systems being under
influence of the simple sinusoidal perturbation signal . At 1993 Noda has proposed generalized
method for obtaining the 2-D correlation spectra for the case of any type of external perturbation.
Because of the necessity of the Fourier-transformation of dinamic spectra, the mathematical
theory for the generalized method was somewhat more complicated than for the initial one.
Recently, the new modification of the generalized method using discrete Hylbert transformation
was proposed [2]. This approach simplifies calculations significantely.
In this work we tried to introduce additional continuous approximation of the crosssections of spectral surface for the cases of fixed frequency and of fixed initial parameter to the
generalized method. This approach gives us opportunity to trace the number of spectral peaks at
certain external parameter value and, hence, to check their appearance or disappearance in
combination with the analysis of 2-D correlation spectra. The peak searching method used in this
work permits us to detect accurately and quikly the changes in spectra with the time. This
approach permits to determine more accurately the moment of separation of strongly overlapped
bands.
References
1. I. Noda, Bull. Am. Phys. Soc. 31 (1986) 520 – 524.
2. I. Noda, Y. Ozaki. Two-dimensional Correlation Spectroscopy - Applications in Vibrational
and Optical Spectroscopy, England, 2004
The list of the publications
1. E. Maximova, L. Derzhavets, “ Application of 2D-correlation spectroscopy method for
interpretation of spectra and enhancing the spectral resolution”, Book of abstracts of the
International Student Conference “Science and Progress 2011”. — 2011. — p. 201
2. E. Maksimova, S. Levin, “ Application of 2D-correlation spectroscopy method for
interpretation of spectra and enhancing the spectral resolution”, Supplement to the
journal Physics in Higher Education, Vol. 18, № 1, 2012, p. 1146
Scientific adviser
Ph.D.
Levin S. B.
Ph.D.
Bulanin K. M.
Reviewer
Dr.
Filippov N. N.