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|Title:||Sensitive detection of potassium ion using Prussian blue nanotube sensor|
|Citation:||Nguyen, B.T.T., Ang, J.Q., Toh, C.-S. (2009-10). Sensitive detection of potassium ion using Prussian blue nanotube sensor. Electrochemistry Communications 11 (10) : 1861-1864. ScholarBank@NUS Repository. https://doi.org/10.1016/j.elecom.2009.08.003|
|Abstract:||A model K+ sensor using Prussian blue nanotubes is fabricated by electrochemical deposition of Prussian blue (PB) within the nanochannels of a porous metal-coated membrane with partially covered pore openings. The PB nanotube sensor exhibits excellent stability giving reproducible peak potentials up to 500 measurement cycles, a very low detection limit of 2.0 × 10-8 M and extremely wide logarithmic linear ranges between 5.0 × 10-8-7.0 × 10-4 M and 7.0 × 10-4-1.0 M. Negligible interferences by Na+, Mg2+ and Ca2+ are observed and a rapid analysis time of 30 s is readily achieved. The ease of electrodeposition, high stability of PB nanotubes and outstanding analytical performance which surpasses conventional PB voltammetric and potentiometric sensors demonstrates potential sensing applications including ion sensors and biosensors using PB and other metal hexacyanoferrate nanotubes. © 2009 Elsevier B.V. All rights reserved.|
|Source Title:||Electrochemistry Communications|
|Appears in Collections:||Staff Publications|
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