分光光度法测定放射性废物样品中63Ni活度的验证

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-03-07 DOI:10.1007/s10967-025-10047-9

Marek Hupian, Oľga Rosskopfová, Dominik Juračka, Michal Galamboš

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引用次数: 0

摘要

本文研究了放射性废物样品中63Ni的放射化学分离和活性测定。采用经过验证的分光光度法测定化学产率，以更快的处理时间和更少的材料消耗取代了传统的重量法。分光光度法首先使用NPL参考样品进行验证，确保准确性和一致性。使用离子交换和萃取色谱进行放射化学分离，然后使用液体闪烁计数（LSC）进行活度测量。用分光光度法和重量法测定化学产率进行比较。放射性废物样品中63Ni的平均活度为27.9±3.8 MBq/kg。

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Validation of spectrophotometric method for 63Ni activity determination in radioactive waste samples

This study focuses on the radiochemical separation and activity determination of ⁶³Ni in radioactive waste sample. A validated spectrophotometric method was employed for the chemical yield determination, replacing the traditional gravimetric approach due to its faster processing time and reduced material consumption. The spectrophotometric method was first validated using an NPL reference sample, ensuring accuracy and consistency. Radiochemical separation was conducted using ion-exchange and extraction chromatography, followed by activity measurement using liquid scintillation counting (LSC). The chemical yield was determined using both spectrophotometry and gravimetry for comparison. The average ⁶³Ni activity in the radioactive waste sample was found to be 27.9 ± 3.8 MBq/kg.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.