on 05-11-201704:39 AM - edited on 11-09-202104:20 AM by usermigration2
1) Department of Earth Sciences, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada, 2) School of the Environment, Washington State University, Pullman, Washington, USA, 3) Department of Geosciences, Boise State University, Boise, Idaho, USA, 4) Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, Tennessee, USA Geochemistry, Geophysics, Geosystems (2014), V15, pp2575–2600, doi: 10.1002/2014GC005431 Simultaneous in situ determination of U-Pb and Sm-Nd isotopes in monazite by laser ablation ICP-MS Dylan J. Goudie (1), Christopher M. Fisher (1,2), John M. Hanchar (1), James L. Crowley (3) and John C. Ayers (4) Results are presented for in situ simultaneous determination of U-Pb and Sm-Nd isotopes in monazite using the Laser Ablation Split-Stream (LASS) method. This method uses a laser ablation system coupled to a magnetic-sector inductively coupled plasma mass spectrometer (HR) (ICP-MS) for measuring U-Pb isotopes and a multicollector (MC) ICP-MS for measuring Sm-Nd isotopes. Ablated material is split using a Y-connector and transported simultaneously to both mass spectrometers. In addition to Sm and Nd isotopes, the MC-ICP-MS is configured to also acquire Ce, Nd, Sm, Eu, and Gd elemental abundances.