Sulphur isotope data consistency improved

被引：102

作者：

Coplen, TB

Krouse, HR

机构：

[1] US Geol Survey, Reston, VA 20192 USA

[2] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

来源：

NATURE | 1998年 / 392卷 / 6671期

关键词：

D O I：

10.1038/32080

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The standard used for reporting relative sulphur isotope-abundance data has, historically, been troilite (FeS) derived from the Cañon Diablo meteorite, CDT. However, the isotopic inhomogeneity of this material — the variability in its sulphur-34/sulphur-32 isotope ratio is at least 0.4‰ — greatly exceeds the achievable analytical uncertainty of 0.05‰ (ref. 1). Accordingly, the International Union of Pure and Applied Chemistry (IUPAC) has recommended the setting up of a VCDT scale, which is expected to improve agreement between laboratories in measuring this ratio, δ34S.

引用

页码：32 / 32

页数：1