Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques
The analysis of geological samples that have several chemically diffused zones which formed under certain physico-chemical condition is difficult to achieve. The quantitative estimations of the minerals in such samples are tedious. The present work demonstrates the application of LIBS for qualitativ...
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MDPI AG
2022-11-01
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| author | Sonali Dubey Abhishek Kumar Rai Jayanta Kumar Pati Rohit Kumar Mrigank Mauli Dwivedi Awadhesh Kumar Rai |
| author_facet | Sonali Dubey Abhishek Kumar Rai Jayanta Kumar Pati Rohit Kumar Mrigank Mauli Dwivedi Awadhesh Kumar Rai |
| author_sort | Sonali Dubey |
| collection | DOAJ |
| description | The analysis of geological samples that have several chemically diffused zones which formed under certain physico-chemical condition is difficult to achieve. The quantitative estimations of the minerals in such samples are tedious. The present work demonstrates the application of LIBS for qualitative and quantitative analyses of a quartz-fluorite composite which was procured from an amygdaloidal basalt from Deccan Traps, India. The presence of weak emission lines of F in the spectral range of 200–900 nm makes it challenging to quantify the fluorine. This study has addressed a promising alternative to quantify the fluorine using electronic bands of CaF molecules observed in the Laser-induced Breakdown Spectroscopy (LIBS) spectrum. In addition to this spectroscopic technique, the authors also have used Photoacoustic Spectroscopy (PAS) and UV-VIS spectroscopy technique to obtain molecular information from the geological sample. Principal Component Analysis (PCA) was applied to a truncated spectral region of the CaF molecule, and it showed 99% variance. Further, the obtained results with these spectroscopic techniques were compared with the results that were obtained from X-ray diffraction and Electron Probe Micro Analyzer, and they show good agreement. Thus, the LIBS technique can be promising for in situ profile section (varies from few microns to centimeters size) studies without the sample’s destruction using the point detection capability of LIBS. |
| first_indexed | 2024-03-09T17:20:42Z |
| format | Article |
| id | doaj.art-fa6143b950cc45dbad3de32a85e01097 |
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| issn | 2218-2004 |
| language | English |
| last_indexed | 2024-03-09T17:20:42Z |
| publishDate | 2022-11-01 |
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| spelling | doaj.art-fa6143b950cc45dbad3de32a85e010972023-11-24T13:14:14ZengMDPI AGAtoms2218-20042022-11-0110413310.3390/atoms10040133Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic TechniquesSonali Dubey0Abhishek Kumar Rai1Jayanta Kumar Pati2Rohit Kumar3Mrigank Mauli Dwivedi4Awadhesh Kumar Rai5Department of Physics, University of Allahabad, Prayagraj 211002, IndiaDepartment of Earth and Planetary Sciences, Nehru Science Centre, University of Allahabad, Prayagraj 211002, IndiaDepartment of Earth and Planetary Sciences, Nehru Science Centre, University of Allahabad, Prayagraj 211002, IndiaDepartment of Physics, CMP Degree College, University of Allahabad, Prayagraj 211002, IndiaNational Centre of Experimental Mineralogy and Petrology, 14 Chatham Lines, University of Allahabad, Prayagraj 211002, IndiaDepartment of Physics, University of Allahabad, Prayagraj 211002, IndiaThe analysis of geological samples that have several chemically diffused zones which formed under certain physico-chemical condition is difficult to achieve. The quantitative estimations of the minerals in such samples are tedious. The present work demonstrates the application of LIBS for qualitative and quantitative analyses of a quartz-fluorite composite which was procured from an amygdaloidal basalt from Deccan Traps, India. The presence of weak emission lines of F in the spectral range of 200–900 nm makes it challenging to quantify the fluorine. This study has addressed a promising alternative to quantify the fluorine using electronic bands of CaF molecules observed in the Laser-induced Breakdown Spectroscopy (LIBS) spectrum. In addition to this spectroscopic technique, the authors also have used Photoacoustic Spectroscopy (PAS) and UV-VIS spectroscopy technique to obtain molecular information from the geological sample. Principal Component Analysis (PCA) was applied to a truncated spectral region of the CaF molecule, and it showed 99% variance. Further, the obtained results with these spectroscopic techniques were compared with the results that were obtained from X-ray diffraction and Electron Probe Micro Analyzer, and they show good agreement. Thus, the LIBS technique can be promising for in situ profile section (varies from few microns to centimeters size) studies without the sample’s destruction using the point detection capability of LIBS.https://www.mdpi.com/2218-2004/10/4/133LIBSquartz-fluorite compositePASCaF bandPCA |
| spellingShingle | Sonali Dubey Abhishek Kumar Rai Jayanta Kumar Pati Rohit Kumar Mrigank Mauli Dwivedi Awadhesh Kumar Rai Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques Atoms LIBS quartz-fluorite composite PAS CaF band PCA |
| title | Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques |
| title_full | Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques |
| title_fullStr | Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques |
| title_full_unstemmed | Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques |
| title_short | Domainal Investigation of a Quartz-Fluorite Composite Using Spectroscopic Techniques |
| title_sort | domainal investigation of a quartz fluorite composite using spectroscopic techniques |
| topic | LIBS quartz-fluorite composite PAS CaF band PCA |
| url | https://www.mdpi.com/2218-2004/10/4/133 |
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