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Open AccessArticle

Ultrafast Elemental Mapping of Platinum Group Elements and Mineral Identification in Platinum-Palladium Ore Using Laser Induced Breakdown Spectroscopy

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ELEMISSION Inc., 3410, Thimens blvd., Montreal, QC H4R 1V6, Canada
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Institut National de la Recherche Scientifique, 1650 Lionel-Boulet blvd., Varennes, QC J3X 1S2, Canada
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First Drilling, 2990 N Townsend Ave, Montrose, CO 81401, USA
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(3), 207; https://doi.org/10.3390/min10030207
Received: 7 January 2020 / Revised: 6 February 2020 / Accepted: 21 February 2020 / Published: 25 February 2020
(This article belongs to the Special Issue Modern Luminescence Spectroscopy of Minerals)
This paper demonstrates the capability of performing an ultrafast chemical mapping of drill cores collected from a platinum/palladium mine using laser-induced breakdown spectroscopy (LIBS). A scan of 40 mm × 30 mm was performed, using a commercial LIBS analyzer, onto the flat surface of a drill core with a scanning speed of 1000 Hz, and a spatial resolution of 50 µm, in about 8 min. Maps of the scanned areas for seven chemical elements (platinum, palladium, nickel, copper, iron, silicon, and magnesium), as well as a single map including the seven elements altogether, were then generated using the proprietary software integrated into the LIBS analyzer. Based on the latter image, seven minerals were identified using the principal component analysis (PCA) and correlations with the elemental maps. View Full-Text
Keywords: laser induced breakdown spectroscopy (LIBS); platinum-group elements (PGE); mineral identification; scanning speed at 1000 Hz; principal component analysis (PCA) laser induced breakdown spectroscopy (LIBS); platinum-group elements (PGE); mineral identification; scanning speed at 1000 Hz; principal component analysis (PCA)
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Rifai, K.; Özcan, L.-Ç.; Doucet, F.R.; Rhoderick, K.; Vidal, F. Ultrafast Elemental Mapping of Platinum Group Elements and Mineral Identification in Platinum-Palladium Ore Using Laser Induced Breakdown Spectroscopy. Minerals 2020, 10, 207.

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