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FT-IR and FT-Raman spectra of Sulfanilamide were recorded and analysed. Surface-Enhanced Raman Scattering (SERS) spectrum was recorded on a silver electrode surface. Potential dependence of SERS profile was studied. The profile is most prominent at an electrode potential of −1.0 V. The molecule is adsorbed on the silver surface with the benzene ring in a 'tilted orientation'.

IR, Raman and surface-enhanced Raman scattering (SERS) spectra of L-proline were recorded and analyzed. The molecular plane assumes a tilted orientation with respect to the metal surface. The vibrational wavenumbers and corresponding vibrational assignments are examined theoretically using the Gaussian 03 set of quantum chemistry codes.

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