TITLE

Two-dimensional fluorescence correlation spectroscopy: Analysis of polynuclear aromatic hydrocarbons in cyclohexane solutions

AUTHOR(S)
Nakashima, Kenichi; Yasuda, Satoshi; Noda, Isao; Ozaki, Yukihiro
PUB. DATE
March 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 503 Issue 1, p325
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Generalized two-dimensional (2D) correlation spectroscopy has been applied to the analysis of fluorescence spectra of anthracene-phenanthrene and anthracene-pyrene mixtures in cyclohexane solutions. These aromatic hydrocarbons have fine-structured and well-characterized spectra suitable for investigating basic features of the 2D fluorescence correlation spectroscopy. We used two types of perturbation to induce the intensity variations of fluorescence spectra: one is concentration change, and the other is excitation-wavelength change. Both perturbation gave a series of systematically varying spectra, which led to the development of clear synchronous and asynchronous maps. By using the 2D correlation maps thus obtained, the vibronic bands in the complicated fluorescence spectra of the mixture of the probes were successfully analyzed. This study demonstrates the usefulness and potentiality of 2D correlation technique in the field of fluorescence spectroscopy. © 2000 American Institute of Physics.
ACCESSION #
5984961

 

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