A spectroscopic study of rose bengal

✍ Scribed by H.R. Zhu; L. Parker

• Book ID: 103027153
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 481 KB
• Volume: 162
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)87002-2

✦ Synopsis

Raman ( 5C-1750 cm-' ) , infrared, surface-enhanced Raman and surface-enhanced resonance Raman scattering spectra of rose benpl were studied. It was concluded, based on the analysis of the spectra, that rose bengal has a stable quinoidal structure. A comparison of our results with the literature is presented. Our surface-enhanced Raman scattering experiments reveal the role of the Ag colloids prepared at different reaction rates and provide a semi-direct way to test and verify the electromagnetic enhancement theory of surfaceenhanced Raman scattering. The presented experimental methods will be useful for future studies of rose bengal.