AXAD-16-3,4-dihydroxy benzoyl methyl phosphonic acid: a selective preconcentrator for U and Th from acidic waste streams and environmental samples
作者： M.A. Maheswari , M.S. Subramanian
DOI: 10.1016/J.REACTFUNCTPOLYM.2004.10.001
关键词: Thorium 、 Extraction (chemistry) 、 Thermogravimetric analysis 、 Ion chromatography 、 Chelation 、 Chemistry 、 Metal 、 Matrix (chemical analysis) 、 Elemental analysis 、 Nuclear chemistry
摘要: Abstract A novel chelating ion-exchange extraction chromatographic technique has been developed using AXAD-16-3,4-dihydroxy benzoyl methyl phosphonic acid, as the stationary phase, for selective of uranium and thorium. The polymeric phase was characterized by FT-IR spectroscopy, CHNPS elemental analysis also thermo gravimetric analysis. Various physio-chemical parameters influencing quantitative metal ion were optimized both static dynamic methods. most notable feature resin matrix its high distribution ratio values under acidities pH conditions. showed superior sorption capacity 1.66 1.51 mmol g−1 U(VI) Th(IV), respectively. Kinetics studies revealed that time duration
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