title: Surface-active substrates for Raman and luminescence analysis.
abstract: 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.
authors.affiliation: Advanced Monitoring Development Group, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6101, U.S.A.
authors.forename: T
authors.initials: T
authors.lastname: Vo-Dinh
authors.forename: G H
authors.initials: GH
authors.lastname: Miller
authors.forename: J
authors.initials: J
authors.lastname: Bello
authors.forename: R
authors.initials: R
authors.lastname: Johnson
authors.forename: R L
authors.initials: RL
authors.lastname: Moody
authors.forename: A
authors.initials: A
authors.lastname: Alak
authors.forename: W R
authors.initials: WR
authors.lastname: Fletcher