辐射防护 ›› 2023, Vol. 43 ›› Issue (5): 485-489.

• 辐射防护监测 • 上一篇    下一篇

海水中137Cs和90Sr分析的实验室间比对

林静, 黄德坤, 倪甲林, 纪建达, 钟强强, 张金钊, 于涛   

  1. 自然资源部第三海洋研究所海洋生态环境预警监测研究室,福建 厦门 361005
  • 收稿日期:2022-08-11 出版日期:2023-09-20 发布日期:2023-11-06
  • 通讯作者: 于涛。E-mail:yutao@tio.org.cn
  • 作者简介:林静(1985—),女,2008年毕业于厦门大学化学专业,2011年硕士毕业于厦门大学海洋化学专业,工程师。E-mail:linjing@tio.org.cn
  • 基金资助:
    崂山实验室科技创新项目(LSKJ202202901);自然资源部第三海洋研究所基本科研业务费专项资金资助项目(海三科2022005)。

Inter-comparison results of 137Cs and 90Sr in seawater among analytical laboratories

LIN Jing, HUANG Dekun, NI Jialin, JI Jianda, ZHONG Qiangqiang, ZHANG Jinzhao, YU Tao   

  1. Laboratory of Marine Ecological Environment Early Warning and Monitoring, Third Institute of Oceanography, Ministry of Natural Resources, Fujian Xiamen 361005
  • Received:2022-08-11 Online:2023-09-20 Published:2023-11-06

摘要: 为提高海洋环境放射性核素监测水平,开展了海水中137Cs和90Sr的实验室间测量比对活动。137Cs测量结果与参考值的相对偏差为-2.99%~5.97%,测量结果的准确度、精密度和正确度均满足比对要求,比对评价结果均为“合格”;90Sr测量结果与参考值的相对偏差为-41.58%~3.96%,其中12个实验室的比对评价结果为“合格”,1个实验室的比对评价结果为“不合格”。本次比对活动,各参比实验室的整体比对结果良好。

关键词: 海水, 137Cs, 90Sr, 放射性, 比对

Abstract: Inter-comparison results among analytical laboratories for the measurements of 137Cs and 90Sr in seawater in 2020 is described in this paper. The spiked seawater samples were distributed to 13 participating laboratories, and their analytical results were compared to the reference values. The relative deviation of 137Cs between measured values and reference value was -2.99% to 5.97%. The results had passed all criteria and were assigned “Accepted” status as a final score. In the case of 90Sr, one measured result did not pass the accuracy test and correctness test, so it was considered as “Not Accepted”. All other results were accepted. The analytical laboratories participating in this inter-comparison have good overall comparison results.

Key words: seawater, 137Cs, 90Sr, radioactivity, inter-comparison

中图分类号: 

  • X830.2