Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions
Fluorescence spectra and polarization spectra of vinegar-water solutions with different concentration of CH3COOH have been studied. The characteristics and mechanism of fluorescence spectra are discussed, and polarization degree is calculated. Vinegar-water solutions are excited by ultraviolet (UV)...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2016/8416869 |
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| _version_ | 1832549731135389696 |
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| author | Dan Li Xuan Wang Caiqin Han |
| author_facet | Dan Li Xuan Wang Caiqin Han |
| author_sort | Dan Li |
| collection | DOAJ |
| description | Fluorescence spectra and polarization spectra of vinegar-water solutions with different concentration of CH3COOH have been studied. The characteristics and mechanism of fluorescence spectra are discussed, and polarization degree is calculated. Vinegar-water solutions are excited by ultraviolet (UV) light at 380 nm. The characteristic fluorescence peaks of the solution were identified at 445 nm and 470 nm. The type of emission fluorescence is π⁎→n. With the increasing concentration of CH3COOH/pH value, the peak intensity is enhanced first, and then fluorescence quenching occurs. The polarization degree confirms the molecular orientation of different sample solutions. This research provides theoretical and experimental basis for the physical/chemical properties and quality of vinegar detection by florescence spectroscopy. |
| format | Article |
| id | doaj-art-8e4c61cacbb84888bc603de8e01968e5 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-8e4c61cacbb84888bc603de8e01968e52025-02-03T06:08:48ZengWileyJournal of Spectroscopy2314-49202314-49392016-01-01201610.1155/2016/84168698416869Study on the Fluorescence Spectra Characteristics of Vinegar-Water SolutionsDan Li0Xuan Wang1Caiqin Han2School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, ChinaSchool of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, ChinaSchool of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, ChinaFluorescence spectra and polarization spectra of vinegar-water solutions with different concentration of CH3COOH have been studied. The characteristics and mechanism of fluorescence spectra are discussed, and polarization degree is calculated. Vinegar-water solutions are excited by ultraviolet (UV) light at 380 nm. The characteristic fluorescence peaks of the solution were identified at 445 nm and 470 nm. The type of emission fluorescence is π⁎→n. With the increasing concentration of CH3COOH/pH value, the peak intensity is enhanced first, and then fluorescence quenching occurs. The polarization degree confirms the molecular orientation of different sample solutions. This research provides theoretical and experimental basis for the physical/chemical properties and quality of vinegar detection by florescence spectroscopy.http://dx.doi.org/10.1155/2016/8416869 |
| spellingShingle | Dan Li Xuan Wang Caiqin Han Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions Journal of Spectroscopy |
| title | Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions |
| title_full | Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions |
| title_fullStr | Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions |
| title_full_unstemmed | Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions |
| title_short | Study on the Fluorescence Spectra Characteristics of Vinegar-Water Solutions |
| title_sort | study on the fluorescence spectra characteristics of vinegar water solutions |
| url | http://dx.doi.org/10.1155/2016/8416869 |
| work_keys_str_mv | AT danli studyonthefluorescencespectracharacteristicsofvinegarwatersolutions AT xuanwang studyonthefluorescencespectracharacteristicsofvinegarwatersolutions AT caiqinhan studyonthefluorescencespectracharacteristicsofvinegarwatersolutions |