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THE PROGRESS OF 14C-AMS ANALYSIS FOR ULTRA-SMALL SAMPLES AT XI’AN AMS CENTER

Published online by Cambridge University Press:  15 August 2023

Hua Du Open the ORCID record for Hua Du [Opens in a new window] ,
Yunchong Fu ,
Peng Cheng Open the ORCID record for Peng Cheng [Opens in a new window] ,
Haiyan Zhao Open the ORCID record for Haiyan Zhao [Opens in a new window] ,
Yaoyao Hou ,
Xiaohu Xiong ,
Huachun Gu  and
Ling Yang
Hua Du*
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China
Yunchong Fu*
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China
Peng Cheng
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China
Haiyan Zhao
Affiliation:
Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China Xi’an Institute for Innovative Earth Environment Research, Xi’an 710061, China
Yaoyao Hou
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China
Xiaohu Xiong
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China
Huachun Gu
Affiliation:
Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China Xi’an Institute for Innovative Earth Environment Research, Xi’an 710061, China
Ling Yang
Affiliation:
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Xi’an AMS Center, Xi’an 710061, China
*
*Corresponding authors. Emails: duhua@ieecas.cn and fuyc@ieecas.cn
*Corresponding authors. Emails: duhua@ieecas.cn and fuyc@ieecas.cn
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Abstract

As there exists a growing demand for chronological research and tracer applications using radiocarbon (14C) analyses of samples smaller than 100 μg C, a compact micro-specific hydrogen graphitization method has been developed at the Xi’an Accelerator Mass Spectrometry (AMS) Center. This article describes the performance of the system and the mass of carbon background produced during ultra-small sample preparation. Furthermore, we discuss the results of contamination corrections and perform 14C analyses on small samples with known age or reference values. The results reveal that our 14C analysis of ultra-small samples of 10–100 μg C can obtain accurate and reliable results, and the micro-scale 14C-AMS analysis technique meets our research objectives for dating and tracer applications.

Keywords

AMSgraphitization reactorradiocarbon background correctionradiocarbonultra-small samples
Type
Conference Paper
Information
Radiocarbon , First View , pp. 1 - 18
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of University of Arizona

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Footnotes

Selected Papers from the 24th Radiocarbon and 10th Radiocarbon & Archaeology International Conferences, Zurich, Switzerland, 11–16 Sept. 2022

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