The comparison of fluorescent spectra on acetic acid and ethanol solutions

Ying Liu; Xiufeng Lan; Shumei Gao; Zhonghua Shen; Jian Lu; Xiao-Wu Ni

doi:10.1117/12.546562

8 December 2003 The comparison of fluorescent spectra on acetic acid and ethanol solutions

Ying Liu, Xiufeng Lan, Shumei Gao, Zhonghua Shen, Jian Lu, Xiao-Wu Ni

Proceedings Volume 5254, Third International Conference on Photonics and Imaging in Biology and Medicine; (2003) https://doi.org/10.1117/12.546562
Event: Third International Conference on Photonics and Imaging in Biology and Medicine, 2003, Wuhan, China

Abstract

Acetic acid and ethanol solutions can emit fluorescence when induced by 253.7nm UV-light. In this paper, fluorescence spectral characteristics of acetic acid and ethanol solutions are analyzed and studied in theory and in experiment. The results indicate that both acetic acid and ethanol can emit two fluorescence spectral bands, one is from 330nm to 493nm and the other is from 534nm to 665nm. The emitting fluorescence intensity is very sensitive to the solutions concentrations, and fluorescence quenching occurs in some solutions of the two samples. Furthermore, the physical mechanism of fluorescence emission of acetic acid and ethanol molecules is analyzed based on the theory of molecule orbital structure, and the quenching mechanism are studied by the dynamic process. Investigation on the native fluorescence spectrum of the two solvent and their characteristics will contribute to the study of the fluorescence spectra when they serve as solute, hydrolysis catalyst and food additive.

Citation Download Citation

Ying Liu, Xiufeng Lan, Shumei Gao, Zhonghua Shen, Jian Lu, and Xiao-Wu Ni "The comparison of fluorescent spectra on acetic acid and ethanol solutions", Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); https://doi.org/10.1117/12.546562

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