Redox-Pair-Defined Electrochemical Measurements: Biamperometric
Setup for Elimination of Interferent Effects and for Sensing of
Unstable Redox Systems

J 2016

Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems

LACINA, Karel, Petr VANÝSEK, Petr BEDNÁŘ, Libuše TRNKOVÁ, Petr SKLÁDAL et. al.

Basic information

Original name

Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems

Authors

LACINA, Karel (203 Czech Republic, guarantor, belonging to the institution), Petr VANÝSEK (203 Czech Republic), Petr BEDNÁŘ (203 Czech Republic, belonging to the institution), Libuše TRNKOVÁ (203 Czech Republic, belonging to the institution) and Petr SKLÁDAL (203 Czech Republic, belonging to the institution)

Edition

ChemElectroChem, WEINHEIM, Wiley-V C H VERLAG GMBH, 2016, 2196-0216

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 4.136

RIV identification code

RIV/00216224:14740/16:00093649

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1002/celc.201600076

UT WoS

000380045400005

Keywords (in Czech)

analytické metody; cyklická biamperometrie; elektrochemie; redoxní chemie; senzory

Keywords in English

analytical methods; cyclic biamperometry; electrochemistry; redox chemistry; sensors

Abstract

V originále

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.

Links

ED1.1.00/02.0068, research and development project

Name: CEITEC - central european institute of technology

Citovat

LACINA, Karel, Petr VANÝSEK, Petr BEDNÁŘ, Libuše TRNKOVÁ and Petr SKLÁDAL. Redox-Pair-Defined Electrochemical Measurements: Biamperometric Setup for Elimination of Interferent Effects and for Sensing of Unstable Redox Systems. ChemElectroChem. WEINHEIM: Wiley-V C H VERLAG GMBH, 2016, vol. 3, No 6, p. 877-882. ISSN 2196-0216. Available from: https://dx.doi.org/10.1002/celc.201600076.

@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 and 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, vol.~3, No~6, p.~877-882. ISSN~2196-0216. Available from: https://dx.doi.org/10.1002/celc.201600076.

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