Comparison of two sequential separation methods for U and Th determination in environmental samples by alpha-particle spectrometry
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Abstract
This paper deals with radiochemical procedures for U and Th determination (238U, 234U, 232Th and 230Th) via alpha spectrometry in water and sediment samples. After checking a separation process based on chromatographic extraction (using UTEVA resins), a detailed comparison with another separation process (liquid–liquid solvent extraction using tri-n-butyl phosphate-TBP) has been performed. Both separation processes were applied in environmental liquid and solid samples and the two separation methods were compared in order to find the more suitable separation process attending on parameters such as chemical yields, interference elimination, time-consuming, reagents used and generated wastes, among others. As major result, we can indicate the UTEVA separation process as a better option than TBP in U and Th isotopes determination by alpha-particle spectrometry.
© by Oldenbourg Wissenschaftsverlag, Bellaterra, Germany
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Articles in the same Issue
- Historical Item
- Preparation of 67Cu via deuteron irradiation of 70Zn
- Mutual separation of americium(III) and europium(III) using glycolamic acid and thioglycolamic acid
- Comparison of two sequential separation methods for U and Th determination in environmental samples by alpha-particle spectrometry
- Selective separation of actinyl(V,VI) cations from aqueous solutions by Chelex-100
- Kinetics of hydrogen peroxide consumption in aqueous phase at different hydrogen partial pressures
- The influence of pH on the sorption and diffusion of 99TcO4− in Beishan granite
- New separation method of no-carrier-added 47Sc from titanium targets
- A novel 99mTc-labeled dimethyl-substituted zoledronic acid (DMIDP) with improved bone imaging efficiency
- Polymersomes as nano-carriers to retain harmful recoil nuclides in alpha radionuclide therapy: a feasibility study
