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Citation: Chen Ting, L iang Fang, Zheng Li-Yu, Chen Wen-Ju, Mo Yu-Jun. Surface-Enhanced Resonance Raman Scattering Spectra of Sodium Fluorescein with Different Tautomers[J]. Acta Physico-Chimica Sinica, ;1991, 7(03): 300-304. doi: 10.3866/PKU.WHXB19910308 shu

Surface-Enhanced Resonance Raman Scattering Spectra of Sodium Fluorescein with Different Tautomers

1.
Physics Department, Nankai University, Tianjin 30071; Institute of Physics, Academia Sincia, Beijing

Received Date: 16 February 1990
Available Online: 15 June 1991

The SERRS spectra of sodium fluorescein at various pH values adsorbed on silverisland film are presented. Due to the fact that sodium fluorescein exists in different ionic forms in the solutions at different pH values, these SERRS spectra are different. The difference lies not in the freciuency, but in the intensity of Raman bands. The intensity variation of the band with the pH value falls into two categeries depending on the nature of corresponding modes of vibration. The experimental results are interpred by using a "four-level model" with the theory of resonance Raman scttering.
- Sodium fluorescein; SERRS
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