Micelle-mediated extraction and neutron activation determination of nanogram levels of vanadium in seaweeds
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Date
2018-12
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Radioanalytical and Nuclear Chemistry
Abstract
A simple one-step micelle-mediated extraction, commonly called cloud point extraction, method was developed for the preconcentration of vanadium in red, brown and green seaweeds. The recovery of vanadium under the optimized conditions of pH 3.7, [PAN/TAN] = 1×10−4 M, [PONPE-20] = 0.1% (m/v), ionic strength = 0.05 M KNO3, and a temperature of 41 °C was > 99%. Vanadium was assayed by neutron activation analysis using the Dalhousie University SLOWPOKE-2 reactor facility. The detection limits for vanadium varied from 0.6 to 3.9 µg kg−1 depending on the sample. The method was validated using certified reference materials. Mass fractions of vanadium in seaweeds ranged from 0.009 to 55.4 mg kg−1. © 2018, Akadémiai Kiadó, Budapest, Hungary.
Description
Keywords
Cloud point extraction, Neutron activation, Seaweeds, Vanadium
Citation
Serfor-Armah, Y., Carboo, D., Akuamoah, R.K. et al. J Radioanal Nucl Chem (2018) 318: 2039. https://doi.org/10.1007/s10967-018-6194-5