克拉科夫AGH-UST树状实验室AMS石墨化系统的现状

IF 1.2 4区 地球科学 Q3 Earth and Planetary Sciences
Damian Wiktorowski, M. Krąpiec, A. Rakowski, A. Cherkinsky
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引用次数: 0

摘要

摘要在克拉科夫AGH-UST的树状结构实验室建立了一个使用加速器质谱仪(AMS)制备用于放射性碳(14C)测量的石墨样品的新系统。该系统由三个独立组件组成。第一种是用于机械和化学样品预处理的设备。第二个是用于样品密封和CO2纯化的真空管线。该系统的第三个也是中心部分是石墨化线,石墨是由二氧化碳生产的。在第一阶段,进行化学样品制备以去除杂质。IAEA和NIST OxII标准材料在未经预处理的情况下转化为CO2。在下一步中,将样品燃烧成二氧化碳。将得到的CO2在真空下释放并低温纯化以用于随后的石墨化。该系统的性能用NIST OxII、IAEA标准(IAEA C5、C6和C7)和背景样品进行了测试。该测试证实了使用该系统制备的样品所获得的结果具有良好的再现性。本文介绍了49个NIST Ox II、IAEA标准样品和空白样品的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Status of the AMS graphitization system in the dendrochronological laboratory at AGH-UST, Kraków
Abstract A new system for the preparation of graphite samples for radiocarbon (14C) measurement using an accelerator mass spectrometer (AMS) has been built in the Dendrochronological Laboratory at AGH-UST, Kraków. This system consists of three independent components. The first is the equipment for mechanical and chemical sample pre-treatment. The second is the vacuum line for sample sealing and the purification of CO2. The third and central part of this system is a graphitization line, where graphite is produced from CO2. In the first stage, chemical sample preparation was carried out to remove impurities. IAEA and NIST OxII standard materials were converted to CO2 without pre-treatment. In the next step, samples were combusted to CO2. The resulting CO2 was released under vacuum and cryogenically purified for subsequent graphitization. The performance of the system was tested with NIST OxII, IAEA standards (IAEA C5, C6 and C7) and background samples. The test confirms good reproducibility of results obtained for the samples prepared using this system. The results of the 49 samples of NIST Ox-II, IAEA standards and blank samples were presented in this article.
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来源期刊
Geochronometria
Geochronometria 地学-地球科学综合
CiteScore
2.20
自引率
0.00%
发文量
1
审稿时长
>12 weeks
期刊介绍: Geochronometria is aimed at integrating scientists developing different methods of absolute chronology and using them in different fields of earth and other natural sciences and archaeology. The methods in use are e.g. radiocarbon, stable isotopes, isotopes of natural decay series, optically stimulated luminescence, thermoluminescence, EPR/ESR, dendrochronology, varve chronology. The journal publishes papers that are devoted to developing the dating methods as well as studies concentrating on their applications in geology, palaeoclimatology, palaeobiology, palaeohydrology, geocgraphy and archaeology etc.
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