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Comparison of Mg/Ca concentration series from Patella depressa limpet shells using CF-LIBS and LA-ICP-MS

Abstract: The elemental composition of marine mollusk shells can offer valuable information about environmental conditions experienced by a mollusk during its lifespan. Previous studies have shown significant correlations between Mg/Ca concentration ratios measured on biogenic carbonate of mollusk shells and sea surface temperature (SST). Here we propose the use of Laser-Induced Breakdown Spectroscopy (LIBS) and the validation of the Calibration-Free LIBS (CF-LIBS) approach for the rapid measurement and estimation of Mg/Ca molar concentration profiles within Patella depressa Pennant, 1777 limpet shells. To achieve these objectives, results derived from CF-LIBS methodology are compared with those obtained from an established analytical technique for this purpose, such as Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). Concentration series obtained with both methodologies show defined temporal patterns and reflect the season-of-capture in each specimen. The results evidence a significant correlation (R2 = 0.63-0.81) between CF-LIBS and LA-ICP-MS Mg/Ca molar concentration profiles within four live-collected P. depressa shells. Averaged error for the molar concentration estimated with CF-LIBS was lower than 10% in every specimen. The comparison between the results obtained from two techniques used in this study has allowed us to demonstrate for the first time that Mg/Ca molar concentration measured in biogenic carbonates were accurately inferred using CF-LIBS technique. The CF-LIBS approach validation represents great potential for the rapid and large-scale paleoenvironmental and archaeological analysis of this mollusk species, which is frequently found in archaeological sites.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Martínez-Minchero M., Cobo A., Méndez-Vicente A., Pisonero J., Bordel N., Gutiérrez-Zugasti I., Roberts P., Arrizabalaga Á., Valdiande J., Mirapeix J., López-Higuera J.M., García-Escárzaga A.,

 Fuente: Talanta, 2023, 251, 123757

Editorial: Elsevier

 Fecha de publicación: 01/01/2023

Nº de páginas: 11

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.talanta.2022.123757

ISSN: 0039-9140,1873-3573

 Proyecto español: HAR2016-75605-R ; HAR2017-86262-P ; PID2019-107270RB-C21

Autoría

MÉNDEZ VICENTE, ANA

PISONERO CASTRO, JORGE

BORDEL GARCÍA, NEREA

ROBERTS, PATRICK

ALVARO ARRIZABALAGA VALVUENA

JOSE JULIAN VALDIANDE GUTIERREZ

ASIER GARCIA ESCARZAGA