Abstract
Laser-induced breakdown spectroscopy (LIBS) is a flexible non-destructive method for both qualitative and quantitative analysis. These days, people are obsessed with gemstones apart from gold caused by the attractive natural look and, therefore, the sort of colour that is limited availability for the gemstone. However, due to this demand, the price was not stable. The seller easily misled the consumer because it is harder to distinguish the quality of different original natural gemstones. This study aims to characterize and analyze the element that is present from each spectrum in the gemstone. After that, the main element of the gemstone was identified, and the gemstone was classified by using multivariate analysis, Principal Component Analysis (PCA). Four types of gemstones were employed in this study. The spectrum was produced, and each line of emission represented the elements contained in the gemstone. LIBS-PCA technique is a method that can be used for the classification and characterization of gemstones.
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Acknowledgement
This research was supported by the Ministry of Higher Education (MOHE) through Fundamental Research Grant Scheme for Research Acculturation of Early Career Researchers (FRGS-RACER) (RACER/1/2019/STG02/UTHM//1) and Universiti Tun Hussein Onn Malaysia Postgraduate Research Grant (H632) for funding the project. Special thanks from author for Faculty of Applied Sciences and Technology (FAST) of Universiti Tun Hussein Onn Malaysia, give full support in terms of instruments.
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Saufi, N.M. et al. (2022). Element Identification of Different Gemstones by Using LIBS-PCA Method. In: Mustapha, A.B., Shamsuddin, S., Zuhaib Haider Rizvi, S., Asman, S.B., Jamaian, S.S. (eds) Proceedings of the 7th International Conference on the Applications of Science and Mathematics 2021. Springer Proceedings in Physics, vol 273. Springer, Singapore. https://doi.org/10.1007/978-981-16-8903-1_16
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DOI: https://doi.org/10.1007/978-981-16-8903-1_16
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