| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9746626 | International Journal of Mass Spectrometry | 2005 | 5 Pages |
Abstract
Gravimetric synthetic mixtures prepared from highly enriched isotopes of neodymium in the form of oxides of well-defined purity were used to calibrate a multicollector inductively coupled plasma mass spectrometry (MC-ICPMS). Measurements on natural neodymium samples yielded an absolute isotopic composition 27.147(20)Â at.% 142Nd, 12.182(21)Â at.% 143Nd, 23.803(14)Â at.% 144Nd, 8.297(6)Â at.% 145Nd, 17.190(13)Â at.% 146Nd, 5.755(8)Â at.% 148Nd, 5.626(10)Â at.% 150Nd, and the atomic weight of neodymium as 144.2409(17) both with an uncertainty given on the basis of 95% confidence limit. No isotopic fractionation was found in terrestrial neodymium materials. Thermal ionization mass spectrometry (TIMS) analyses were carried on the same samples measured by MC-ICPMS and the essentially identical results were obtained, both for the abundances and the atomic weights.
Related Topics
Physical Sciences and Engineering
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Authors
Motian Zhao, Tao Zhou, Jun Wang, Hai Lu, Fang Xiang,