Direct determination of lead in Vostok Antarctic ancient ice by laser excited atomic fluorescence spectrometry

• Published in: Atmospheric Environment. Part A. General Topics
• Main Authors: Boutron, Claude F., Bolshov, Michael A., Koloshnikov, Vsevolod G., Patterson, Clair C., Barkov, N. I.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier 1990
• Subjects: Lead; Antarctica; ice core; laser atomic fluorescence; isotope dilution; trace analysis; Holocene; last ice age; Antarc*; Antarctic; Antarctique*
• Online Access: https://doi.org/10.1016/0960-1686(90)90511-K

Concentrations of lead (Pb) have been directly measured by laser excited atomic fluorescence spectrometry down to pg g^(−1) level in six sections of the 2083 m Vostok deep Antarctic ice core which had previously been mechanically decontaminated. Very small volumes of samples (20μl) were used, and there was no need for any preliminary chemical treatment or preconcentration step. The results are in very good agreement with those previously obtained for these core sections by isotope dilution mass spectrometry. © 1990 Pergamon Press. First received 3 May 1989 and received for publication 15 January 1990. We are grateful to C. Lori us for making the Vostok core sections available for this study. This work was made possible through the collaboration between the Laboratoire de Glaciologie et Geophysique de I'Environnement and the Institute of Spectroscopy established within the framework of the French-Soviet Commission. It was supported in France by the Ministére de I'Environnement and the Terres Australes et Antarctiques Françaises, in the U.S.A. by NSF Grant Nb DPP 840-3490, and in the U.S.S.R. by the Soviet Antarctic Expeditions.