Current Sample Preparation and Analytical Capabilities of the Radiocarbon Laboratory at CologneAMS

Current Sample Preparation and Analytical Capabilities of the Radiocarbon Laboratory at CologneAMS
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科隆AMS 放射性碳实验室当前的样品制备和分析能力

DOI:
10.1017/rdc.2019.16
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发表时间:
2019
期刊:
影响因子:
8.3
通讯作者:
Dewald
Dewald
中科院分区:
地球科学4区
文献类型:
--
作者:
Rethemeyer;Gierga;Heinze;Wischhöfer;Melchert;Dewald

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本文总结了德国科隆大学加速器质谱(AMS)设施放射性碳实验室的方法能力、改进和新发展。在过去的几年里,该实验室专门从事小型和气体样品的分析。因此,我们最近在High Voltage Engineering Europe B. V.的6 MV Tandetron AMS上安装了第二个离子源,专门用于CO2样品的放射性碳(14 C)分析,该离子源与Ionplus的气体注入系统和EuroVector EA 3000元素分析仪相结合。这项工作总结了所有的预处理方法和分析设施,建立在我们的实验室在过去几年中,包括14 C分析的个别有机化合物和CO2分子筛上捕获。我们还报告了不同的空白值,包括我们自2011年以来的长期空白值,这是正常大小的固体样品(650-1000 µg C)0.0012 ± 0.0004 F14 C(54,305 ± 2581年BP,n = 484)。现代石墨样品的测量精度为0.5%,气体样品注入GIS ≤ 2%。
This work summarizes the methodical capabilities, improvements, and new developments in the radiocarbon laboratory of the accelerator mass spectrometry (AMS) facility at the University of Cologne, Germany, which was established in 2010. During the past years, the laboratory has specialized in the analysis of small and gaseous samples. We thus, recently installed a second ion source dedicated for radiocarbon (14C) analysis of CO2 samples at our 6 MV Tandetron AMS from High Voltage Engineering Europe B.V. that is coupled with the gas injection system from Ionplus and an EuroVector EA 3000 elemental analyzer. This work summarizes all pretreatment methods and analytical facilities established in our laboratory during the last years including 14C analysis of individual organic compounds and of CO2 trapped on molecular sieves. We also report different blank values including our long-term blank since 2011, which is for normal-sized, solid samples (650–1000 µg C) 0.0012 ± 0.0004 F14C (54,305 ± 2581 yr BP, n = 484). The precision obtained for modern samples measured as graphite is 0.5% and for gaseous samples injected with the GIS ≤2%.
科隆AMS 改进了小型 14CO2 样品的测量
DOI: 10.1016/j.nimb.2018.12.008
发表时间: 2019
期刊: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
影响因子: --
作者:
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DOI: 10.1017/rdc.2019.143
发表时间: 2019
期刊: Radiocarbon
影响因子: 8.3
作者:
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发表时间: 2013
期刊: Radiocarbon
影响因子: 8.3
作者:
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影响因子: 1.3
作者:
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影响因子: 1.3
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