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Dynamic Flow Approaches for Automated Radiochemical Analysis in Environmental Nuclear and Medical Applications

机译:在环境核能和医学应用中用于自动化放射化学分析的动态流方法

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摘要

Automated sample processing techniques are desirable in radiochemical analysis for environmental radioactivity monitoring, nuclear emergency preparedness, nuclear waste characterization and management during operation and decommissioning of nuclear facilities, as well as medical isotope production, to achieve fast and cost-effective analysis. Dynamic flow based approaches including flow injection (FI), sequential injection (SI), multi-commuted flow injection (MCFI), multi-syringe flow injection (MSFI), multi-pumping flow system (MPFS), lab-on-valve (LOV) and lab-in-syringe (LIS) techniques have been developed and applied to meet the analytical criteria under different situations. Herein an overall review and discussion on these techniques and methodologies developed for radiochemical separation and measurement of various radionuclides is presented. Different designs of flow systems with combinations of radiochemical separation techniques, such as liquid–liquid extraction (LLE), liquid–liquid microextraction (LLME), solid phase extraction chromatography (SPEC), ion exchange chromatography (IEC), electrochemically modulated separations (EMS), capillary electrophoresis (CE), molecularly imprinted polymer (MIP) separation and online sensing and detection systems, are summarized and reviewed systematically.
机译:在放射化学分析中,需要自动化的样品处理技术来进行环境放射性监测,核应急准备,核设施的运行和退役以及医学同位素生产过程中的核废料表征和管理,以实现快速且具有成本效益的分析。基于动态流的方法,包括流注入(FI),顺序注入(SI),多换向流注入(MCFI),多针流注入(MSFI),多泵流系统(MPFS),阀上实验室( LOV)和注射器实验室(LIS)技术已被开发并应用于满足不同情况下的分析标准。本文介绍了对这些为放射化学分离和各种放射性核素的测量而开发的技术和方法学的全面回顾和讨论。结合放射化学分离技术(例如液-液萃取(LLE),液-液微萃取(LLME),固相萃取色谱(SPEC),离子交换色谱(IEC),电化学调制分离(EMS))的流动系统的不同设计),毛细管电泳(CE),分子印迹聚合物(MIP)分离以及在线传感和检测系统进行了总结和系统综述。

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