Re-Os isotopic measurements at the femtomole level in natural samples

被引：666
作者：
Birck, JL [1 ]
RoyBarman, M [1 ]
Capmas, F [1 ]
机构：
[1] CNES, GRGS, UMR 5566, F-31401 TOULOUSE 4, FRANCE
来源：
GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS | 1997年 / 21卷 / 01期
关键词：
D O I：
10.1111/j.1751-908X.1997.tb00528.x
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Here we describe a new chemical separation method for Os and an improved mass spectrometric procedure for Re and Os. This technique is based on the selective extraction of OsO4 from aqueous solution in liquid bromine. Among other advantages, this procedure avoids the cumbersome distillation procedure for Os and uses only commercial ''off the shelf'' PFA teflon labware. Blank levels for 0.5 g sample sizes are: 0.06 pg and 0.5 pg for Os and Re respectively. Samples containing as little as 1 pg g(-1) Os can be analysed reliably with this method. Adaptation to other dissolution methods is also discussed.
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页码：19 / 27
页数：9
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