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Determination of Neodymium and Ytterbium by Isotope Dilution Laser Mass Spectrometry
Authors:G I Ramendik  E V Fatyushina  A I Stepanov
Institution:(1) Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia
Abstract:The experimental conditions for minimizing errors in the laser mass spectrometric (LMS) analysis of isotopic ratios for Nd and Yb were found, and the optimum isotope pairs for determining these elements with the use of isotope dilution (ID) were chosen. The precision and accuracy of LMS data, which are characterized by relative random errors (RSD) and relative systematic errors (delta), can be improved using ID. The values for Nd or Yb were no higher than RSD = 2.9% and delta = 0.024 or RSD = 5% and delta = 0.097, respectively.
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