原子能科学技术2016，Vol.50Issue(2)：235-241,7.DOI:10.7538/yzk.2016.50.02.0235
后处理有机相料液中Pu（Ⅳ）和硝酸的同时快速分析
Simultaneous and Fast Determination for Pu(Ⅳ) and Nitric Acid in Organic Feed Solution of Nuclear Fuel Reprocessing
李定明 1张丽华 1龚焱平 2范德军 1易宝山 2陈强 2吉永超 2吴继宗1
作者信息
- 1. 中国原子能科学研究院放射化学研究所，北京 102413
- 2. 中核四〇四有限公司第三分公司，甘肃兰州 732850
- 折叠
摘要
Abstract
The determinations of Pu (Ⅳ ) and nitric acid play a significant role in the nuclear fuel reprocessing plant to control process accurately and timely .By scanning near infrared absorptive spectra with the spectroscopic instrument and processing the spectra data with PLS method , a simultaneous and fast determination method for Pu(Ⅳ) and the nitric acid in organic feed solution of nuclear fuel reprocessing was successfully developed .For the measurements of Pu(Ⅳ) and nitric acid in organic solu‐tions ,the concentration measurement ranges of Pu (Ⅳ ) and the nitric acid are 0.15‐15 g/L and 0.05‐0.80 mol/L , respectively , which almost cover most of analytical processing point of nuclear fuel reprocessing .One sample was measured six times ,the relative standard deviation of nitric acid is less than 5% ,and that of Pu(Ⅳ) is less than 2% .All of the results are successfully examined by t‐test .The recoveries of Pu(Ⅳ) and nitric acid are 95%‐103% respectively .关键词
近红外光谱/Pu (Ⅳ)/硝酸/同时快速分析/核燃料后处理Key words
near infrared absorptive spectrum/Pu (Ⅳ)/nitric acid/simultaneous and fast determination/nuclear fuel reprocessing分类
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李定明,张丽华,龚焱平,范德军,易宝山,陈强,吉永超,吴继宗..后处理有机相料液中Pu（Ⅳ）和硝酸的同时快速分析[J].原子能科学技术,2016,50(2):235-241,7.
