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Issue 24, 2017
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Fast and direct detection of metal accumulation in marine sediments using laser-induced breakdown spectroscopy (LIBS): a case study from the Bay of Cienfuegos, Cuba†

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Abstract

Laser-induced breakdown spectroscopy (LIBS) is an emerging, multi-elemental and green technique, particularly suitable for the direct analysis of solid samples. In this study, thirty-two superficial sediments collected from Cienfuegos Bay in 2011–2013 were analyzed by LIBS without requiring sample digestion. Al, Ca, Fe, K, Mg, Mn, Na and Ti emission lines were detected in all samples. The full LIBS spectra of the samples were subjected to principal component analysis (PCA) and hierarchical cluster analysis (HCA). Most samples showed a similar emission signal pattern, whereas two samples collected in 2012 and another two in 2013 showed anomalously higher emission signals for Na, Mg and Ca, Mg, respectively. In three of the sediments, the impact of external factors on the ecosystem is the presumable cause of the observed anomalies. The combination of LIBS with multivariate data analysis demonstrated a high capacity for the fast detection of anomalous metal compositions in marine sediments.

Graphical abstract: Fast and direct detection of metal accumulation in marine sediments using laser-induced breakdown spectroscopy (LIBS): a case study from the Bay of Cienfuegos, Cuba†

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Publication details

The article was received on 03 Mar 2017, accepted on 15 May 2017 and first published on 22 May 2017


Article type: Paper
DOI: 10.1039/C7AY00578D
Citation: Anal. Methods, 2017,9, 3713-3719
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    Fast and direct detection of metal accumulation in marine sediments using laser-induced breakdown spectroscopy (LIBS): a case study from the Bay of Cienfuegos, Cuba†

    M. Peña-Icart, M. S. Pomares-Alfonso, F. W. Batista de Aquino, C. Alonso-Hernandez, Y. Bolaños-Alvarez and E. R. Pereira-Filho, Anal. Methods, 2017, 9, 3713
    DOI: 10.1039/C7AY00578D

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