Influence of Excitation Light Wavelength on the Fluorescence Spectra of Ethanol Solutions
LIU Ying1, 2, LAN Xiu-feng1, SHEN Zhong-hua1, LU Jian1, NI Xiao-wu1*
1. School of Science, Nanjing University of Science & Technology, Nanjing 210094, China 2. Department of Physics, Xuzhou Normal University, Xuzhou 221009, China
Abstract：Ethanol solution can emit visible fluorescence when induced by UV light. With emission spectral profiles similar on the whole, the peaks are red-shifted distinctly when the excitation light alters from 200 to 250 nm. And the spectral profiles of ethanol solutions with different concentrations are also red-shifted when induced by the same wavelength of excotation light. A thorough analysis of the rule of spectrum peaks that are red-shifted is carried out and discussed in theory and in experiment. Investigation on the intrinsic fluorescence spectrum of ethanol solution and its characteristics will contribute to the study of the fluorescence spectra when ethanol serves as a solute and hydrolysis catalyst. Especially, this study will also help to offer a sensitive method of the determination of ethanol.
刘 莹1，2, 兰秀风1, 沈中华1, 陆 建1, 倪晓武1* . 激励光波长对乙醇溶液荧光光谱特性的影响[J]. 光谱学与光谱分析, 2005, 25(02): 242-245.
LIU Ying1, 2, LAN Xiu-feng1, SHEN Zhong-hua1, LU Jian1, NI Xiao-wu1* . Influence of Excitation Light Wavelength on the Fluorescence Spectra of Ethanol Solutions . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(02): 242-245.
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