Surface-active substrates for Raman and luminescence analysis.
This paper describes the development of active materials for optically enhanced Raman and fluorescence spectroscopy. The substrates for surface-enhanced Raman scattering investigated in this study involved silver-coated microspheres on glass plates. The effect of various experimental parameters, such as angle of incidence and excitation wavelength, were investigated. The substrate used for surface luminescence analysis consisted of a cellulose membrane coated with fumed silica microparticles, to enhance the sensitivity of analysis. Examples of analysis of benzo[a]pyrene and its derivatives are used to illustrate the efficacy of the analytical techniques.
Vo-Dinh
T
T
Advanced Monitoring Development Group, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6101, U.S.A.
Miller
G H
GH
Bello
J
J
Johnson
R
R
Moody
R L
RL
Alak
A
A
Fletcher
W R
WR