Journal article
Automatic determination of arsenate in drinking water by flow analysis with dual membrane-based separation
R Vera, Y Zhang, C Fontàs, MIGS Almeida, E Anticó, RW Cattrall, SD Kolev
Food Chemistry | ELSEVIER SCI LTD | Published : 2019
Abstract
The sequential application of a polymer inclusion membrane (PIM), composed of poly(vinylidenefluoride-co-hexafluoropropylene) and the anionic extractant Aliquat 336, and a microporous polytetrafluoroethylene (PTFE) gas-permeable membrane was utilized for the first time to develop a flow analysis (FA) system, for the automatic determination of trace levels of arsenate (As(V)) in drinking water as arsine. The system incorporated a flow-through extraction cell for separation and preconcentration of arsenate and a gas-diffusion cell for the separation of arsine prior to its spectrophotometric determination based on the discoloration of a potassium permanganate solution. Under optimal conditions ..
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Awarded by Australian Research Council
Funding Acknowledgements
The financial support of the Spanish government for Research project CTM2016-78798-C2-2-P (AEI/FEDER/UE) is acknowledged. R. Vera acknowledges Research grant BES-2014-068314 from Spanish Ministerio de Economia y Competitividad and Mobility grant EEBB-I-17-12404 for conducting research at The University of Melbourne. The authors would like to thank the Australian Research Council for financial support of this research (Grant LP100100800).