In:
Journal of AOAC INTERNATIONAL, Oxford University Press (OUP), Vol. 99, No. 4 ( 2016-07-01), p. 1043-1048
Abstract:
The main purpose of this study was to achieve a substantial increase in the sensitivity of the uranium determination using UV-Vis spectrometry. To achieve this goal, ion-imprinted polymers were prepared for the uranyl (imprint) ion by the formation of a ternary (salicylaldoxime and 4-vinylpyridine) complex in 2-methoxy ethanol (porogen) following copolymerization with methacrylic acid. The synthesized polymers were characterized by FTIR analysis and thermogravimetric analysis. In the preconcentration step, the optimal pH was determined to be between values of 3.5 and 6.5. The adsorbed UO22+ was completely eluted by 10 mL of 3.0 mol L−1 HClO4. The developed method was applied to uranium (VI) determination in natural water samples. By using the initial volume of 500 mL and final volume of 5 mL, a concentration of 1 μg L−1 can be determined by applying the developed method in this study.
Type of Medium:
Online Resource
ISSN:
1060-3271
,
1944-7922
DOI:
10.5740/jaoacint.16-0088
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
2016
