Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.electacta.2010.04.025
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dc.title | Ion-selective detection of non-intercalating Na+ using competitive inhibition of K+ intercalation in Prussian blue nanotubes sensor | |
dc.contributor.author | Ang, J.Q. | |
dc.contributor.author | Nguyen, B.T.T. | |
dc.contributor.author | Huang, Y. | |
dc.contributor.author | Toh, C.-S. | |
dc.date.accessioned | 2014-10-16T08:48:18Z | |
dc.date.available | 2014-10-16T08:48:18Z | |
dc.date.issued | 2010-11-30 | |
dc.identifier.citation | Ang, J.Q., Nguyen, B.T.T., Huang, Y., Toh, C.-S. (2010-11-30). Ion-selective detection of non-intercalating Na+ using competitive inhibition of K+ intercalation in Prussian blue nanotubes sensor. Electrochimica Acta 55 (27) : 7903-7908. ScholarBank@NUS Repository. https://doi.org/10.1016/j.electacta.2010.04.025 | |
dc.identifier.issn | 00134686 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95476 | |
dc.description.abstract | A nanotubes sensor for Na+ is fabricated using electrodeposition of iron hexacyanoferrate polymer within the nanochannels of a nanoporous metal-coated membrane. The sensing signal is derived from the influence of Na+ on the cathodic peak potential of the voltammetric response of the Prussian blue (PB) nanotubes immersed in a background solution containing K+, giving a 2K+:1e- Nernstian response, instead of the usual 1K+:1e- process in the absence of Na+. A competitive-inhibition reaction scheme is proposed which gives excellent agreement of theoretical values derived from equilibrium consideration, with experimental data obtained under reversible, slow scan rate conditions. A wide linear range over three orders of magnitude for Na sensing can be achieved by simple adjustment of background K+ levels. Specific and accurate detection of Na+ using the PB nanotubes sensor is demonstrated in a solution containing potential interfering ions: K +, Mg2+, Ca2+. © 2010 Elsevier Ltd. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.electacta.2010.04.025 | |
dc.source | Scopus | |
dc.subject | Hexacyanoferrate | |
dc.subject | Ion-selective electrode | |
dc.subject | Membrane | |
dc.subject | Potassium | |
dc.subject | Prussian blue | |
dc.subject | Sensor | |
dc.subject | Sodium | |
dc.type | Conference Paper | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1016/j.electacta.2010.04.025 | |
dc.description.sourcetitle | Electrochimica Acta | |
dc.description.volume | 55 | |
dc.description.issue | 27 | |
dc.description.page | 7903-7908 | |
dc.description.coden | ELCAA | |
dc.identifier.isiut | 000284434700017 | |
Appears in Collections: | Staff Publications |
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