Hydrogen isotope analysis of natural abundance and deuterium-enriched waters by reduction over chromium on-line to a dynamic dual inlet isotope-ratio mass spectrometer
Hydrogen isotope analysis of natural abundance and deuterium-enriched waters by reduction over chromium on-line to a dynamic dual inlet isotope-ratio mass spectrometer
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DOI：
10.1002/rcm.361
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发表时间：
2001-01-01
影响因子：
2
通讯作者：
Bearhop, S
中科院分区：
文献类型：
--
作者：
Donnelly, T;Waldron, S;Bearhop, S
本文介绍了一种简单的铬还原炉的应用，它可以连接到一个双入口同位素比质谱仪，从而提供了廉价，快速，准确和精确的测量deltaD（V-SMOW）的动态质谱的能力。测量的精确度小于或等于0.5%。维也纳标准平均海水（V-SMOW）至标准南极轻降水（SMOW）范围的平均95%置信区间约为千分之2.5，系统在千分之-428至23，000范围内呈线性。记忆效应确实存在，但对于天然丰度样品来说很小，可以通过仔细规划分析负荷来最小化。版权所有（C）2001约翰威利父子有限公司
This paper describes the application of a simple chromium reduction furnace which can be interfaced with a dual inlet isotope-ratio mass spectrometer thus providing the capacity for cheap, fast, accurate and precise measurement of deltaD(V-SMOW) by dynamic mass spectrometry. Measurements are precise to the order of less than or equal to0.5%. Mean 95% confidence intervals for the Vienna Standard Mean Ocean Water (V-SMOW) to Standard Light Antarctic Precipitation (SLAP) range are in the order of 2.5 parts per thousand and the system is linear over the range -428 to 23,000 parts per thousand. Memory effects do exist, but are small for natural abundance samples and can be minimised by careful planning of the analytical load. Copyright (C) 2001 John Wiley & Sons, Ltd.