Journal
OPTICS AND LASER TECHNOLOGY
Volume 43, Issue 8, Pages 1405-1410Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2011.04.009
Keywords
Laser-induced breakdown spectroscopy; Barapukuria coal mine; Ytterbium
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Laser-induced breakdown spectroscopy (LIBS) was used to analyze the coal samples from the Barapukuria coal mine of Bangladesh and coal from eastern India. Besides the major elements carbon and silicon, a number of minor and trace elements, such as iron, titanium, aluminum, calcium, sodium, copper, zirconium, neodymium, ytterbium, cerium, samarium, dysprosium and gadolinium were identified. In earlier work some researchers identified the lines around 279 and 280 nm as due to Mg II rather than Yb III. The reasons for identifying these two lines as due to ytterbium in the present work are explained. The detection of multiple elements in one experiment in a commonly used fuel demonstrated the versatility and multi-elemental capability of LIBS. (C) 2011 Elsevier Ltd. All rights reserved.
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