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Accelerator Mass Spectrometry Analysis of 237NP in Environmental Samples

Published online by Cambridge University Press:  01 July 2019

Yongjing Guan ,
Shaohan Sun ,
Huijuan Wang ,
Filippo Terrasi ,
Zhiyong Liu ,
Lucio Gialanella ,
Raffaele Buompane ,
Joseph Tandoh  and
Xianwen He
Yongjing Guan*
Affiliation:
Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science & Technology, Guangxi University, Nanning 530004, China
Shaohan Sun
Affiliation:
Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science & Technology, Guangxi University, Nanning 530004, China
Huijuan Wang
Affiliation:
Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science & Technology, Guangxi University, Nanning 530004, China
Filippo Terrasi
Affiliation:
Department of Mathematics and Physics –Campania University L. Vanvitelli and INNOVA, Caserta 81100, Italy
Zhiyong Liu
Affiliation:
State Key laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
Lucio Gialanella
Affiliation:
Department of Mathematics and Physics –Campania University L. Vanvitelli and INNOVA, Caserta 81100, Italy
Raffaele Buompane
Affiliation:
Department of Mathematics and Physics –Campania University L. Vanvitelli and INNOVA, Caserta 81100, Italy
Joseph Tandoh
Affiliation:
Department of Mathematics and Physics –Campania University L. Vanvitelli and INNOVA, Caserta 81100, Italy
Xianwen He
Affiliation:
Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Nanning 530222, China
*
*Corresponding author. Email: yjguan@gxu.edu.cn.
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Abstract

To determine the 237Np concentration originating from global fallout in the environment, samples were collected from Guangxi, south of China, and measured by accelerator mass spectrometry (AMS) at CIRCE. Serials standard samples and environment samples were prepared and measured using 242Pu as a tracer. The result indicates that the detection limit of 237Np as low as 10–15 g can be obtained. The concentration of 237Np in the environmental samples is less than 49.09 pg/kg (i.e. 1.280 mBq/kg), and the most probable value of 237Np is approximately 20 pg/kg (i.e. 0.53 mBq/kg).

Keywords

accelerator mass spectrometryenvironmental sampleneptunium
Type
Conference Paper
Information
Radiocarbon , Volume 61 , Issue 5: Radiocarbon 2018 Conference Proceedings Trondheim, Norway, June 17–22, 2018 Part 1 of 2 , October 2019 , pp. 1423 - 1430
Copyright
© 2019 by the Arizona Board of Regents on behalf of the University of Arizona 

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Footnotes

Selected Papers from the 23rd International Radiocarbon Conference, Trondheim, Norway, 17–22 June, 2018

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