土壤样品中239+240Pu的测定.pdfVIP

第38卷第4期 原子能科学技术 VoL 38 ,No. 4 2004年7月 Ato皿ic Energy Science and Technology Ju!y 20号4 土壤样品中239+凶PU 的溺定 常志远，赵敏，李井怀 《中医墨子能辑学研究院撞射化学研究所，北京 1024- 13) 摘要z 参照 GB11219.1-89 土壤中坏龄剥定 萃取色层法，采题时Pu 同位素示踪、电沉积哥哥源J 能谱 测量，对医内某领设施附近土壤辛辛品以及 IAEA 土壤参考辛辛品 IAEA-Soil-6 和 IAEA-375 中剖m恼。 PU 古董进行了分析测定。溅定值与 IAEA 参考样品参考值按远，与 IAEA-Soil-6 和 IAEA-375 部参考值爵 的捂对偏差分裂为-3.8%和-2.3%. 关键渴·土攘样品产1H240 Pu;萃滚色层法阳能谱吉普定法 申匮分类号，TL242.1 文戴标识码，A 文章攘号，1000-6931 (2004)04-037 0-03 Determination of 139+2甜P延 in Soil Sample CHANG Zhi-yuan , ZHAO Min , LI Jing-huai (China Institute of Ato-四ic Energy. Beijing 102413. China) Abstract , This work is based on the national standard of China GB 1l219. 1-89(determi- na艺 ion of plutonium in soH-一-extraction chromatography 四ethod) 238 PU is used as a yield tracer , and the electroplating source is counted with a low background a_-spεctro meter. The 23H240pU contents în the soil samples from near a nuclear facility and two IAEA reference materia!s , IAEA-Soil-6 and IAEA-375 are determined using this method. A good agreement is achíeved between our results and the IAEA reference values within 95 % confidence , thεcor臼sponding relatÌve devíation is - 3. 8% and - Z. 3 %, respectively for IAEA-Soil-6 and IAEA-3?5. Key words: soìl; 23 9+ 240 Pu; extraction chroma臼graphy method ， αspectrometry 环境土壤中坏的吉普定对孩设施周围环攘的 程囚收率a 电沉积源用 α 谱仪进行苦苦量。对含 常施监泌及事故情况下的监测均有重要意义e 腐建质较多的土壤样品进行约;烧灰化处理. 环境样品中坏约分析方法中常爵的有离子交换 1 实验 法、毒草剂萃取法及萃取色层法等扫.1 本实验