Comparison of different methods for uranium determination in water

Photometry, laser photometry, liquid scintillation (LSC), gamma spectrometry and alpha spectrometry were used for estimating waterborne uranium concentration. The chemical procedures applied were pre-concentration, liquid extraction, chromatographic resin extraction and precipitation. Our results sh...

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Bibliographic Details
Published in:Journal of environmental radioactivity 2004, Vol.72 (1), p.47-55
Main Authors: Tosheva, Z, Stoyanova, K, Nikolchev, L
Format: Article
Language:English
Subjects:
Analysis methods
Applied sciences
Brackish
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Environment
Environmental Monitoring - methods
Exact sciences and technology
Freshwater
Lasers
Marine
Methods
Natural water pollution
Photometry
Pollution
Uranium
Uranium - analysis
Water
Water Pollutants, Radioactive - analysis
Water treatment and pollution
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Summary:Photometry, laser photometry, liquid scintillation (LSC), gamma spectrometry and alpha spectrometry were used for estimating waterborne uranium concentration. The chemical procedures applied were pre-concentration, liquid extraction, chromatographic resin extraction and precipitation. Our results show that laser photometry is an easy and accurate method capable of estimating low uranium concentrations, parts of micrograms per litre. It is not applicable for higher concentrations, difficult water matrixes and isotope determination. The classical photometry is complementary, resolving the problem related to high concentrations, practically up to 10 mg/l. Alpha and gamma spectrometry resolve the problem of precise isotope determination, but with the disadvantage of hard chemical preparation and long measurement times. An intermediate method is LSC, with the problem of isotope estimation, due to poor energy resolution.
ISSN:0265-931X
1879-1700
DOI:10.1016/S0265-931X(03)00185-1