Pu(Ⅳ)和硝酸同时快速分析装置的研制  

Development of Fast and Simultaneous Analysis Instrument of Pu(Ⅳ)and Nitric Acid

作　　者：李定明[1] 张丽华[1] 范德军[1] 王玲[1] 龚焱平[2] 易宝山 陈强[2] 吉永超[2] 吴继宗[1] 

机构地区：[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

出　　处：《核化学与放射化学》2016年第5期288-295,共8页Journal of Nuclear and Radiochemistry

摘　　要：利用InGaAs检测器与C-T固定光栅结合,外加光纤技术,研制了Pu（Ⅳ）和硝酸快速分析装置。应用NIST SRM2065标准物质测试表明,该仪器测量速度快、波长重复性好、稳定性高。采用该分析装置建立了后处理工艺中Pu（Ⅳ）和硝酸含量的快速分析方法,水相料液中硝酸和钚的测定范围分别为0.42~3.97mol/L、1.07~25.26g/L。Coupling C-T fixed-type grating with InGaAs detector, a new novel analytical instrument for measurement of nitric acid and Pu（Ⅳ） was successfully developed. Acquiring near infrared absorptive spectra （NIR spectra） with the spectroscopic instrument and processing data with PLS technique, a rapid and non-destructive method for measuring the nitric acid and Pu（IV） of reprocessing fuel solutions was established. The instrument shows excellent performances such as rapid measurement, good reproducibility of wavelength, and higher stability. For the measurement of nitric acid and Pu （Ⅳ） in aqueous solutions, the simple, fast and non-destructive method yields wide determination ranges from 0.42- 3.97 mol/L, 1.07-25.26 g/L.

关 键 词：近红外光谱 Pu(Ⅳ) 硝酸 同时快速分析 核燃料后处理 

分 类 号：O657.3[理学—分析化学]