Lead isotope analysis of marine carbonates and seawater by multiple collector ICP-MS

Dissolved Pb and Pb isotopes in the North Atlantic from the GEOVIDE transect (GEOTRACES GA-01) and their decadal evolution

“…That could be due either to contamination of the subsample used for the analysis, or to the contamination of the sample in its primary sample bottle. As shown in Figure S2, the replicate analysis usually agreed within better than 1000ppm for 206 preconcentration and anion exchange purification as described by Reuer et al (2003). As for the GEOVIDE samples, the mass spectrometer was calibrated using NBS981.…”

“…GEOVIDE samples were analysed during 11 mass spectrometry sessions by the method of Reuer et al (2003) as modified by Boyle et al (2012). In brief, ~500mL of seawater was pre-concentrated using a low-blank double magnesium hydroxide co-precipitation, induced by minimal addition of high-purity ammonia solution and mixing 15 (typically 8µL ammonia per 1mL seawater sample).…”

Isotope Ratio Analysis of Lead in Blood and Environmental Samples by Multi-collector Inductively Coupled Plasma Mass Spectrometry

“…In previous studies, Pb isotope ratio measurements with Tl external standardization have been used. [9][10][11] However, the deleterious effects of the matrix element on the isotope ratios measurement were observed in previous reports 10,[12][13][14][15] as well. Environmental and biological samples, such as soil, house dust, diet and blood samples contain a wide variety of matrix elements (i.e., Ca, Na, Al and Fe).…”

Lead isotopes as particulate contaminant tracers and chronostratigraphic markers in lake sediments in northeastern North America

“…Multi-collection can achieve comparable precision and accuracy to TIMS when necessary (Reuer et al, 2003;Yang, 2009) (Hinners et al, 1998;Newman and Georg, 2012 (White et al, 2000).…”