Accurate and precise Pb isotope ratio measurements in environmental samples by MC-ICP-MS

Development of a fully automated open-column chemical-separation system—COLUMNSPIDER—and its application to Sr-Nd-Pb isotope analyses of igneous rock samples

“…resin) and is now widely used for Nd separation (Pin and Zalduegui, 1997;Ishizuka et al, 2003;Le Fèvre and Pin, 2005;Li et al, 2007;Míková and Denková, 2007;Makishima et al, 2008;Yang et al, 2010a). In the case of Pb, anion exchange with a HBr medium (Manhes et al, 1978;Koide and Nakamura, 1990;Woodhead and Hergt, 2000;Kuritani and Nakamura, 2002;Blichert -Toft et al, 2003;Kimura and Nakano, 2004;Miyazaki et al, 2009) or extraction resins, such as Sr -and Pb -specific resins (Horwitz et al, 1994;Gale, 1996;Weiss et al, 2004;Makishima et al, 2007Makishima et al, , 2008, are used for the separation.…”

Effect of the 2008 Chaitén volcano eruption over the antarctic snowfall

“…Lead was isolated from the sample matrix by ion exchange chromatography using Eichrom Sr spec resin (Weiss et al 2004). Neodymium was isolated using a two-step column procedure (Pin & Zalduegui, 1997).…”

“…The instrument mass bias was corrected for using the Tl as an external spike (Weiss et al 2004). The precision and accuracy of Pb isotope ratio measurements were assessed using certified reference material USGS G-2 granite.…”

Application of inductively coupled plasma quadrupole mass spectrometry for the determination of monazite ages by lead isotope ratios

“…1 Although less resistant than zircon, monazite offers the advantage of generally higher U and Th content and often behaves as a closed-system for U and Pb. 2 For the purpose of lead dating, thermal ionization mass spectrometry (TIMS) using a magnetic sector mass analyzer has been the conventional method for high precision isotopic analysis with relative standard deviations (RSD) lower than 0.01% when applied to reference materials, NIST-SRM- [3][4][5] or BCR-SRM-278 (Mussel Tissue), NIST-SRM-1577A (Bovine Liver) and BCR-SRM-422 (Cod Muscle). 6 However, the precision values obtained for real samples are in the range of 0.1-0.3%.…”

“…[7][8][9] Moreover, the relatively high cost of TIMS instrumentation and the extensive chemical pre-treatment required have imposed limitations on the routine use of TIMS techniques in geochemical exploration applications. 5,10,11 Although the quadrupole inductively coupled plasma mass spectrometry (ICP-MS) shows inferior precision in comparison with TIMS, it has some important advantages, such as (i) simple sample pre-treatment, (ii) high sample throughput and simple sample introduction and (iii) widespread availability. 12 Quadrupole based ICP-MS instruments have been used in many studies to measure Pb atom ratios.…”