Universiti Teknologi Malaysia Institutional Repository

Element identification of different gemstones by using LIBS-PCA method

Mohamad Saufi, Noradilah and Adnan, Nurul Nadia and Rizvi, Syed Zuhaib Haider and Roslan, Mohd. Sufi and Razak, Siti Norazida and Hasim, Nurhafizah and Mansor, Nurin Iffah (2022) Element identification of different gemstones by using LIBS-PCA method. In: 7th International Conference on the Applications of Science and Mathematics, SCIEMATHIC 2021, 27 October 2021 - 28 October 2021, Virtual, Online.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/978-981-16-8903-1_16


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.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:gemstones, laser-induced breakdown spectroscopy (LIBS), principal component analysis (PCA)
Subjects:Q Science > QC Physics
ID Code:98740
Deposited By: Yanti Mohd Shah
Deposited On:02 Feb 2023 16:08
Last Modified:02 Feb 2023 16:08

Repository Staff Only: item control page