EXPERIMENTAL CONDITIONS FOR <sup>14</sup>C GRAPHITE PREPARATION AT THE GXNU LAB, CHINA
ABSTRACT As a required sample preparation method for 14 C graphite, the Zn-Fe reduction method has been widely used in various laboratories. However, there is still insufficient research to improve the efficiency of graphite synthesis, reduce modern carbon contamination, and test other condition methodologies at Guangxi Normal University (GXNU). In this work, the experimental parameters, such as the reduction temperature, reaction time, reagent dose, Fe powder pretreatment, and other factors, in the Zn-Fe flame sealing reduction method for 14 C graphite samples were explored and determined. The background induced by the sample preparation process was (2.06 ± 0.55) × 10 –15 , while the 12 C – beam current were better than 40μA. The results provide essential instructions for preparing 14 C graphite of ∼1 mg at the GXNU lab and technical support for the development of 14 C dating and tracing, contributing to biology and environmental science.
Authors
- Hongtao Shen (ORCID: https://orcid.org/0000-0002-8553-7928)
- Dingxiong Chen
- Kimikazu Sasa (ORCID: https://orcid.org/0000-0001-8705-886X)
- Zhaomei Li
- He Ouyang
- Linjie Qi
- Kaiyong Wu
- Junsen Tang
- Xiaojun Sun
- Li Wang (ORCID: https://orcid.org/0009-0009-6933-1354)
- Shan Jiang (ORCID: https://orcid.org/0000-0002-7895-2058)
- Guofeng Zhang (ORCID: https://orcid.org/0000-0002-0796-3403)
- Ning Wang (ORCID: https://orcid.org/0000-0003-4822-7215)
- Ming He
- Xinyi Han (ORCID: https://orcid.org/0000-0002-3045-3997)
- Yun He
Institutions
- University of Tsukuba (JP)
- Guangxi University (CN)
- Guangxi Normal University (CN)
- Guilin University of Technology (CN)
- China Institute of Atomic Energy (CN)
- Guangxi Science and Technology Department (CN)
Publication Details
- Journal
- Radiocarbon
- Published
- 2024-09-20
- DOI
- https://doi.org/10.1017/rdc.2024.73
- Citations
- 1
- Primary Topic
- Graphite, nuclear technology, radiation studies
- Type
- article
- Field-Weighted Citation Impact
- 0.12