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@article{1373348,
author = {Lacina, Karel and Vanýsek, Petr and Bednář, Petr and Trnková, Libuše and Skládal, Petr},
article_location = {WEINHEIM},
article_number = {6},
doi = {http://dx.doi.org/10.1002/celc.201600076},
keywords = {analytical methods; cyclic biamperometry; electrochemistry; redox chemistry; sensors},
language = {eng},
issn = {2196-0216},
journal = {ChemElectroChem},
title = {Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems},
url = {http://onlinelibrary.wiley.com/doi/10.1002/celc.201600076/full},
volume = {3},
year = {2016}
}
TY - JOUR
ID - 1373348
AU - Lacina, Karel - Vanýsek, Petr - Bednář, Petr - Trnková, Libuše - Skládal, Petr
PY - 2016
TI - Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems
JF - ChemElectroChem
VL - 3
IS - 6
SP - 877-882
EP - 877-882
PB - Wiley-V C H VERLAG GMBH
SN - 21960216
KW - analytical methods
KW - cyclic biamperometry
KW - electrochemistry
KW - redox chemistry
KW - sensors
UR - http://onlinelibrary.wiley.com/doi/10.1002/celc.201600076/full
L2 - http://onlinelibrary.wiley.com/doi/10.1002/celc.201600076/full
N2 - Routine, large-scale monitoring, such as point-of-care systems, requires inexpensive and simple analytical schemes. An electroanalytical concept of biamperometry for such sensing systems has been overlooked due to widespread potentiostat-controlled experiments. Herein, biamperometry is introduced as a powerful tool. In particular, its ability to eliminate electrochemical interference is highlighted for a case study on employing [Fe(CN)(6)](4-)/[Fe(CN)(6)](3-), aminoferrocene (Fe2+)/[Ru(NH3)(6)](3+), and ascorbic acid as two redox pairs and one interfering compound, respectively. A specific signal 15 times higher than that of an unspecific signal is observed, even under unfavorable conditions such as a 1:5 molar ratio of specific-to-interfering redox entities. This system is successfully used to determine glucose in blood plasma. A further promising usage of biamperometry is illustrated by the study of an unstable redox system: the oxygen-dependent oxidation of [Ru(NH3)(6)](2+) in an aqueous environment.
ER -
LACINA, Karel, Petr VANÝSEK, Petr BEDNÁŘ, Libuše TRNKOVÁ a Petr SKLÁDAL. Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems. \textit{ChemElectroChem}. WEINHEIM: Wiley-V C H VERLAG GMBH, 2016, roč.~3, č.~6, s.~877-882. ISSN~2196-0216. Dostupné z: https://dx.doi.org/10.1002/celc.201600076.
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