痕量铀分析自动预处理装置的研制

复杂体系中的痕量铀分析常采用时间分辨荧光法,但共存离子干扰严重必须进行样品预处理。目前采用的溶剂萃取法分析速度慢,平均样品分析速度每个40min。本工作依据纤维浸泡式样品预处理路线研制了一台用于痕量铀样品预处理的自动化装置,使用该装置预处理样品后测量,分析速度提高到每小时5个以上,且人工的工作量很少,特别适合大批量样品分析。...

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Bibliographic Details
Published in核化学与放射化学 Vol. 37; no. 6; pp. 429 - 434
Main Author 梁靓 吴继宗
Format Journal Article
LanguageChinese
Published 中国原子能科学研究院 放射化学研究所,北京,102413 2015
Subjects
时间分辨荧光法
痕量铀分析
自动预处理
time resolved fluorescence
痕量铀分析
trace uranium analysis
automatic pretreatment
时间分辨荧光法
自动预处理
Online AccessGet full text
ISSN0253-9950
DOI10.7538/hhx.2015.37.06.0429

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Summary:复杂体系中的痕量铀分析常采用时间分辨荧光法,但共存离子干扰严重必须进行样品预处理。目前采用的溶剂萃取法分析速度慢,平均样品分析速度每个40min。本工作依据纤维浸泡式样品预处理路线研制了一台用于痕量铀样品预处理的自动化装置,使用该装置预处理样品后测量,分析速度提高到每小时5个以上,且人工的工作量很少,特别适合大批量样品分析。
Bibliography:trace uranium analysis; time resolved fluorescence; automatic pretreatment
11-2045/TL
LIANG Liang, WU Ji-zong （China Institute of Atomic Energy, P. O. Box 275（88）, Beijing 102413, China）
Time-resolved fluorescence （TRF） method is most often used to analyze trace uranium in complex matrix. But the accuracy of measurement is not very good because of the existence of some interfering ions, so sample pretreatment is needed. Solvent extraction method is mainly used currently, which has slow analysis speed （40 min for each sample）. For fast and accurate determination of UO2^2＋, a sample automatic pretreatment equipment that can eliminate the influences is developed, which can meet the demand of the trace urani- um analysis in （5 samples per complex systems. hour）, saving the The equipment can greatly improve the analysis speed cost of human resource.
ISSN:0253-9950
DOI:10.7538/hhx.2015.37.06.0429