| 香荆芥酚的荧光光谱和吸收光谱研究 |
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| 引用本文： | Li LR,Liu CG,Wei YJ. 香荆芥酚的荧光光谱和吸收光谱研究[J]. 光谱学与光谱分析, 2011, 31(10): 2763-2766. DOI: 10.3964/j.issn.1000-0593(2011)10-2763-04 |
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| 作者姓名： | Li LR Liu CG Wei YJ |
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| 作者单位： | 河北师范大学化学与材料科学学院,河北石家庄,050016 |
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| 基金项目： | 国家自然科学基金项目(20675025,20975029)资助 |
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| 摘 要： | 研究了中药活性成分香荆芥酚(Carvacrol)的荧光光谱和吸收光谱,依据光谱数据测量了香荆芥酚的电离常数和荧光量子产率.在pH＜2.0时,香荆芥酚的荧光随溶液pH增大而增强;在pH2.0～8.0范围内,香荆芥酚有稳定的强荧光,最大激发波长为278 nm,最大发射波长为306 nm; pH＞8.0时荧光强度随pH的增大...
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| 关 键 词： | 香荆芥酚 荧光光谱 吸收光谱 电离常数 荧光量子产率 |
Fluorescence spectra and absorption spectra of carvacrol |
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| Li Li-Ran,Liu Cui-Ge,Wei Yong-Ju. Fluorescence spectra and absorption spectra of carvacrol[J]. Spectroscopy and Spectral Analysis, 2011, 31(10): 2763-2766. DOI: 10.3964/j.issn.1000-0593(2011)10-2763-04 |
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| Authors: | Li Li-Ran Liu Cui-Ge Wei Yong-Ju |
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| Affiliation: | LI Li-ran,LIU Cui-ge,WEI Yong-ju*College of Chemistry and Materials Science,Hebei Normal University,Shijiazhuang 050016,China |
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| Abstract: | Fluorescence spectra and absorption spectra of carvacrol,an active component of Chinese herbal medicines,have been studied.The ionization constant and fluorescence quantum yield of carvacrol were measured according to spectral data.Under the condition of pH<2.0,fluorescence intensity of carvacrol increases with the increase in pH value.In the range of pH 2.0~8.0,carvacrol gives a strong and steady fluorescence with maximum excitation wavelength 278 nm and emission wavelength 306 nm.When pH>8.0,the fluoresce... |
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| Keywords: | Carvacrol Fluorescence spectrum Absorption spectrum Ionization constant Fluorescence quantum yield |
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