Quartz Tube Enhanced Raman Scattering Spectroscopy
Raman spectroscopy is widely used in many fields with the advantages of simultaneous species detection and molecular fingerprint characteristics, but the low detection sensitivity limits its further development, especially for highly scattering or turbid mediums. In this consideration, a new method...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.930007/full |
| _version_ | 1818466518501949440 |
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| author | Ganshang Si Ganshang Si Jiaxiang Liu Zhengang Li Zhengang Li Zhiqiang Ning Zhiqiang Ning Yonghua Fang Yonghua Fang |
| author_facet | Ganshang Si Ganshang Si Jiaxiang Liu Zhengang Li Zhengang Li Zhiqiang Ning Zhiqiang Ning Yonghua Fang Yonghua Fang |
| author_sort | Ganshang Si |
| collection | DOAJ |
| description | Raman spectroscopy is widely used in many fields with the advantages of simultaneous species detection and molecular fingerprint characteristics, but the low detection sensitivity limits its further development, especially for highly scattering or turbid mediums. In this consideration, a new method called quartz tube enhanced Raman scattering spectroscopy was proposed for the first time in this paper. A quartz tube was inserted into the powder sample to improve the coupling of light into the medium and increase the interaction volume of the laser with the sample (“volume-excitation”), multiple scattering of the light within the turbid medium resulted in an increased Raman signal. In this paper, the effect of different sizes of quartz tubes on the sensitivity enhancement was studied. The results show that the enhancement factor of the signal intensity was nearly 5.37 (the Raman signal of HCO3−) compared to traditional Raman spectroscopy technology. Furthermore, the method was successfully applied to improve the Raman signal intensity of the mixed sample (1:5, m (PO43−):m (HCO3−)) and detect the baking soda powder buried under a 6 mm thick layer of potassium dihydrogen phosphate powder. The results show that the technology will open a new way for the quantitative analysis and detection of powder samples. |
| first_indexed | 2024-04-13T20:59:23Z |
| format | Article |
| id | doaj.art-d540d092b827425bb51f2cddbec472f0 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-13T20:59:23Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-d540d092b827425bb51f2cddbec472f02022-12-22T02:30:12ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-07-011010.3389/fphy.2022.930007930007Quartz Tube Enhanced Raman Scattering SpectroscopyGanshang Si0Ganshang Si1Jiaxiang Liu2Zhengang Li3Zhengang Li4Zhiqiang Ning5Zhiqiang Ning6Yonghua Fang7Yonghua Fang8Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaKey Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaKey Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaKey Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaKey Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, ChinaUniversity of Science and Technology of China, Hefei, ChinaRaman spectroscopy is widely used in many fields with the advantages of simultaneous species detection and molecular fingerprint characteristics, but the low detection sensitivity limits its further development, especially for highly scattering or turbid mediums. In this consideration, a new method called quartz tube enhanced Raman scattering spectroscopy was proposed for the first time in this paper. A quartz tube was inserted into the powder sample to improve the coupling of light into the medium and increase the interaction volume of the laser with the sample (“volume-excitation”), multiple scattering of the light within the turbid medium resulted in an increased Raman signal. In this paper, the effect of different sizes of quartz tubes on the sensitivity enhancement was studied. The results show that the enhancement factor of the signal intensity was nearly 5.37 (the Raman signal of HCO3−) compared to traditional Raman spectroscopy technology. Furthermore, the method was successfully applied to improve the Raman signal intensity of the mixed sample (1:5, m (PO43−):m (HCO3−)) and detect the baking soda powder buried under a 6 mm thick layer of potassium dihydrogen phosphate powder. The results show that the technology will open a new way for the quantitative analysis and detection of powder samples.https://www.frontiersin.org/articles/10.3389/fphy.2022.930007/fullRaman spectroscopyquartz tubepowder samplessignal enhancementnew method |
| spellingShingle | Ganshang Si Ganshang Si Jiaxiang Liu Zhengang Li Zhengang Li Zhiqiang Ning Zhiqiang Ning Yonghua Fang Yonghua Fang Quartz Tube Enhanced Raman Scattering Spectroscopy Frontiers in Physics Raman spectroscopy quartz tube powder samples signal enhancement new method |
| title | Quartz Tube Enhanced Raman Scattering Spectroscopy |
| title_full | Quartz Tube Enhanced Raman Scattering Spectroscopy |
| title_fullStr | Quartz Tube Enhanced Raman Scattering Spectroscopy |
| title_full_unstemmed | Quartz Tube Enhanced Raman Scattering Spectroscopy |
| title_short | Quartz Tube Enhanced Raman Scattering Spectroscopy |
| title_sort | quartz tube enhanced raman scattering spectroscopy |
| topic | Raman spectroscopy quartz tube powder samples signal enhancement new method |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.930007/full |
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