用荧光特征参量分析乙酸-水溶液的结构特性

韩彩芹; 刘莹; 吴斌; 杨洋; 骆晓森; 倪晓武

doi:10.3969/j.issn.1001-3806.2010.O5.017

用荧光特征参量分析乙酸-水溶液的结构特性

1.
徐州师范大学, 物理与电子工程学院, 徐州, 221116;
2.
南京理工大学, 理学院, 南京, 210094

作者简介: 韩彩芹(1972- ),女,博士研究生,现主要从事光与物质及生物组织相互作用方面的研究..

通讯作者: 倪晓武, nxw@mail.njust.edu.cn

基金项目:
江苏省自然科学基金资助项目(BK2007204);江苏省教育厅自然科学基金资助项目(07KJD140208)
中图分类号: O433.4

Analysis of acetic acid-water solution structure characteristics by fluorescence parameters

1.
School of Physics & Electronic Engineering, Xuzhou Normal University, Xuzhou 221116, China;
2.
School of Science, Nanjing University of Science & Technology, Nanjing 210094, China

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

CLC number: O433.4

摘要: 为了研究乙酸-水溶液的分子结构,采用稳态荧光光谱检测方法获得了284nm紫外光照射乙酸-水溶液的荧光光谱及其对应的激发光谱,并测得了10组不同体积分数乙酸-水溶液的荧光光谱。通过分析其激发光谱的谱线特性和荧光峰峰值荧光强度随乙酸-水溶液体积分数的变化关系,从理论上讨论了混合溶液的总吸收度、荧光光子发射以及在发射波长为334nm产生荧光光子的量子产率,进而解释了乙酸水溶液的荧光光谱特征峰。结果表明,乙酸和水溶液体积混合比为1:1和4:1时,对应的缔合物的结合常数分别为n=3和n=1。该分析结果可为进一步研究乙酸和水分子的缔合结构提供实验和理论依据。
- 光谱学 /
- 荧光光谱 /
- 吸光度 /
- 量子产率 /
- 乙酸-水溶液
Abstract: In order to study the molecular structure of acetic acid-water solution,the fluorescence spectra of acetic acid-water solution excited by ultraviolet light at 284nm and the excitation spectrum with 17uorescence peak of 334nm were obtained based on steady state fluorescence spectroscopy. The fluorescence spectra of acetic acid-water solution with 10 various volume percentages induced by the same wavelength exciting light were detected.After studying the excitation spectral characteristics and the relationship between fluorescence peak intensity and acetic acid volume percentage,the total absorbance and fluorescence emission of the mixture were discussed theoretically. The fluorescence quantum yield at the emission wavelength of 334nm was calculated and the fluoresoenoe spectra intrinsic peak of acetic acid-water mixture was explained. The results show that when the volume ratios of acetic acid and water mixture are 1:1 and 4:1,the bonding numbers of acetic acid and water molecular association are n=3 and n=1,respectively. The result can contribute to the further study of acetic acid and water molecular association.
- spectroscopy /
- fluorescence spectrum /
- absorbance /
- quantum yield /
- acetic acid-water solution

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用荧光特征参量分析乙酸-水溶液的结构特性

作者简介: 韩彩芹(1972- ),女,博士研究生,现主要从事光与物质及生物组织相互作用方面的研究..

通讯作者: 倪晓武, nxw@mail.njust.edu.cn

Analysis of acetic acid-water solution structure characteristics by fluorescence parameters

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

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用荧光特征参量分析乙酸-水溶液的结构特性

通讯作者: 倪晓武, nxw@mail.njust.edu.cn

作者简介: 韩彩芹(1972- ),女,博士研究生,现主要从事光与物质及生物组织相互作用方面的研究.

English Abstract

Analysis of acetic acid-water solution structure characteristics by fluorescence parameters

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

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留言板

用荧光特征参量分析乙酸-水溶液的结构特性

作者简介: 韩彩芹(1972- ),女,博士研究生,现主要从事光与物质及生物组织相互作用方面的研究..

通讯作者: 倪晓武, nxw@mail.njust.edu.cn

Analysis of acetic acid-water solution structure characteristics by fluorescence parameters

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

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用荧光特征参量分析乙酸-水溶液的结构特性

通讯作者: 倪晓武, nxw@mail.njust.edu.cn

作者简介: 韩彩芹(1972- ),女,博士研究生,现主要从事光与物质及生物组织相互作用方面的研究.

English Abstract

Analysis of acetic acid-water solution structure characteristics by fluorescence parameters

Corresponding author: NI Xiao-wu, nxw@mail.njust.edu.cn

全文HTML

目录