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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 18, Number 9
BKCSDE 18(9)
September 20, 1997 

 
Title
Analysis of Complex Forced Rayleigh Scattering Decay Profiles for the Diffusion of Methyl Yellow in Binary Solution
Author
Ha Seon Park, Jungmoon Sung, Hyunjung Lee, Taihyun Chang*, Daniel R. Spiegel
Keywords
Abstract
The nature and analysis methods of complicated decay profiles found in forced Rayleigh scattering (FRS) have been investigated for the probe diffusion of methyl yellow in 2-propanol. The complementary shifted and ground state grating effect, which is known to be the origin of non-single exponential decays, was analyzed by non-linear regression fitting to a double exponential model function. We confirmed that the parameters were highly correlated so that it was difficult to extract a unique set of parameters in the presence of experimental noise. Nevertheless, a reasonable range of decay time constants could be estimated from the grating spacing dependence.
Page
1006 - 1010
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