Applications of accurate, high-precision Pb isotope ratio measurement by multi-collector ICP-MS
作者: Kenneth D. CollersonBalz S. KamberRonny Schoenberg
作者单位: 1Department of Earth Sciences, Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), The University of Queensland, Steele Building, St. Lucia, Brisbane, QLD 4072, Australia
刊名: Chemical Geology, 2002, Vol.188 (1), pp.65-83
来源数据库: Elsevier Journal
DOI: 10.1016/S0009-2541(02)00059-1
关键词: Pb-isotopeAnalysisReproducibilityIsochronMulti-collector inductively coupled plasma mass spectrometer
原始语种摘要: Abstract(#br)The isotope composition of Pb is difficult to determine accurately due to the lack of a stable normalisation ratio. Double and triple-spike addition techniques provide one solution and presently yield the most accurate measurements. A number of recent studies have claimed that improved accuracy and precision could also be achieved by multi-collector ICP-MS (MC-ICP-MS) Pb-isotope analysis using the addition of Tl of known isotope composition to Pb samples. In this paper, we verify whether the known isotope composition of Tl can be used for correction of mass discrimination of Pb with an extensive dataset for the NIST standard SRM 981, comparison of MC-ICP-MS with TIMS data, and comparison with three isochrons from different geological environments.When all our NIST SRM 981...
全文获取路径: Elsevier  (合作)
影响因子:3.154 (2012)

  • isotope 同位素
  • isochron 等时线
  • accurate 精确的
  • geological 地质的
  • metamorphic 变质的
  • zircon 锆石
  • minerals 矿物
  • composition 构图
  • precision 精度
  • difficult 困难的