| 彭安国,周鹏,肖静水,赵力,赵志伟.β计数法测定水环境中的131I[J].南华大学学报(自然科学版),2012,26(1):10~13.[PENG An-guo1,ZHOU Peng2,XIAO Jing-shui1,ZHAO Li2,ZHAO Zhi-wei1.Determination of 131I in Water Environment by β Counting Method[J].Journal of University of South China(Science and Technology),2012,26(1):10~13.] |
| β计数法测定水环境中的131I |
| Determination of 131I in Water Environment by β Counting Method |
| 投稿时间：2011-11-10 |
| DOI： |
| 中文关键词: β计数 131I 水环境 |
| 英文关键词:β counting 131I water environment |
| 基金项目:国家自然科学基金资助项目(40806031)；南华大学科研基金资助项目(WT-KF-2010-01；2007×QD36) |
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| 中文摘要: |
| 131I是核医学应用中非常重要的核素，同时也是核泄漏事故中释放的主要裂变核素之一，其准确测定对于环境保护具有非常重要的意义.本文详细描述了不同水环境中的131I的β计数测定法，并对海水、放射性废水等不同水环境样品进行了检测，结果表明：1)本研究中碘的化学回收率为85.39%～94.47%，平均值为90.90%；2)海水样品平行样中131I的体积比活度为0.673 4～0.735 1 Bq/m3,放射性废水平行样中131I的体积比活度为16.80～17.43 Bq/m3，平行样研究结果表明此方法的重现性很好. |
| 英文摘要: |
| 131I is a very important nuclide applied in nuclear medicine;also it is one of the most important fission nuclides released from nuclear leak accidents,so accurate determination of 131I is very important for environment protection.First,we described β counting method in detail for 131I in different water environment;Second,we determined 131I in ocean water and radioactive waste water by this method.The experimental results showed that 1) The full chemical recovery rates of iodine varied from 85.39% to 94.47% and the average is 90.90%;2) The volume activities of 131I in four parallel samples of ocean water were 0.673 4～0.735 1 Bq/m3,while in radioactive waste water,the volume activities of 131I were 16.80～17.43 Bq/m3;the results of parallel sample determination suggested that reproducibility was good for this method. |
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