Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.]
Fluorescence is the emission of light by a substance that absorbs light or other electromagnetic radiation. To date, fluorescence is useful in separating genuine and artificial gemstones. In this study, multiple excitation sources, namely blue, green, red lasers, and white lamp were used to illumina...
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Universiti Teknologi MARA Cawangan Pahang
2020
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| Online Access: | http://ir.uitm.edu.my/id/eprint/46002/1/46002.pdf http://ir.uitm.edu.my/id/eprint/46002/ http://www.gadingst.learningdistance.org/index.php/gadingst/article/view/82 |
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my.uitm.ir.460022021-06-21T08:45:34Z http://ir.uitm.edu.my/id/eprint/46002/ Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] Wan Razali, Wan Aizuddin Baharudeen, Nur ’Atiqah Mat Rawi, Fatin Najihah Othman, Muhammad Firdaus Muhamad Ridzwan, Hendrie Johann Senawi, Syamsyir Akmal Mohamed, Ruziana Optics. Light Spectroscopy Radiation physics (General) Fluorescence is the emission of light by a substance that absorbs light or other electromagnetic radiation. To date, fluorescence is useful in separating genuine and artificial gemstones. In this study, multiple excitation sources, namely blue, green, red lasers, and white lamp were used to illuminate several samples to produce fluorescence. The samples used were genuine ruby crystal, fake ruby crystal and two dye solutions. The fluorescence signal was then detected using a spectrometer. From spectroscopic analysis, each sample gave a different spectrum and the corresponding wavelength was identified through its peak. The analysis showed that the spectrum peak of genuine ruby crystal was at 694.32 nm, whereas the spectrum peak of fake ruby was at 807.72 nm. This study successfully demonstrated the use of the fluorescence technique to distinguish genuine ruby crystal from its artificial. A similar technique can also be used to identify other gemstones. Universiti Teknologi MARA Cawangan Pahang 2020-09 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/46002/1/46002.pdf ID46002 Wan Razali, Wan Aizuddin and Baharudeen, Nur ’Atiqah and Mat Rawi, Fatin Najihah and Othman, Muhammad Firdaus and Muhamad Ridzwan, Hendrie Johann and Senawi, Syamsyir Akmal and Mohamed, Ruziana (2020) Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.]. Gading Journal of Science and Technology, 3 (2). pp. 73-78. ISSN (e-ISSN) : 2637 - 0018 http://www.gadingst.learningdistance.org/index.php/gadingst/article/view/82 |
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Optics. Light Spectroscopy Radiation physics (General) |
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Optics. Light Spectroscopy Radiation physics (General) Wan Razali, Wan Aizuddin Baharudeen, Nur ’Atiqah Mat Rawi, Fatin Najihah Othman, Muhammad Firdaus Muhamad Ridzwan, Hendrie Johann Senawi, Syamsyir Akmal Mohamed, Ruziana Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| description |
Fluorescence is the emission of light by a substance that absorbs light or other electromagnetic radiation. To date, fluorescence is useful in separating genuine and artificial gemstones. In this study, multiple excitation sources, namely blue, green, red lasers, and white lamp were used to illuminate several samples to produce fluorescence. The samples used were genuine ruby crystal, fake ruby crystal and two dye solutions. The fluorescence signal was then detected using a spectrometer. From spectroscopic analysis, each sample gave a different spectrum and the corresponding wavelength was identified through its peak. The analysis showed that the spectrum peak of genuine ruby crystal was at 694.32 nm, whereas the spectrum peak of fake ruby was at 807.72 nm. This study successfully demonstrated the use of the fluorescence technique to distinguish genuine ruby crystal from its artificial. A similar technique can also be used to identify other gemstones. |
| format |
Article |
| author |
Wan Razali, Wan Aizuddin Baharudeen, Nur ’Atiqah Mat Rawi, Fatin Najihah Othman, Muhammad Firdaus Muhamad Ridzwan, Hendrie Johann Senawi, Syamsyir Akmal Mohamed, Ruziana |
| author_facet |
Wan Razali, Wan Aizuddin Baharudeen, Nur ’Atiqah Mat Rawi, Fatin Najihah Othman, Muhammad Firdaus Muhamad Ridzwan, Hendrie Johann Senawi, Syamsyir Akmal Mohamed, Ruziana |
| author_sort |
Wan Razali, Wan Aizuddin |
| title |
Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| title_short |
Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| title_full |
Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| title_fullStr |
Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| title_full_unstemmed |
Gemstone identification using fluorescence technique / Wan Aizuddin Wan Razali … [et al.] |
| title_sort |
gemstone identification using fluorescence technique / wan aizuddin wan razali … [et al.] |
| publisher |
Universiti Teknologi MARA Cawangan Pahang |
| publishDate |
2020 |
| url |
http://ir.uitm.edu.my/id/eprint/46002/1/46002.pdf http://ir.uitm.edu.my/id/eprint/46002/ http://www.gadingst.learningdistance.org/index.php/gadingst/article/view/82 |
| _version_ |
1703963399455506432 |
| score |
13.211869 |