A comparison of electrochemically pre-treated and
spark-platinized carbon fiber microelectrode. Measurement of
8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma

J 2016

A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma

BARTOŠOVÁ, Zdenka, Daniel RIMAN, Vladimír HALOUZKA, Jitka VOSTÁLOVÁ, Vilím ŠIMÁNEK et. al.

Basic information

Original name

A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma

Name in Czech

Srovnání elektrochemicky upravené a jiskrovým výbojem platinizované mikroelektrody z uhlíkového vlákna. Měření 8-oxo-7,8-dihydro-2 '-deoxyguanosinu v moči a ktrevní plasmě.

Authors

BARTOŠOVÁ, Zdenka (203 Czech Republic), Daniel RIMAN (203 Czech Republic), Vladimír HALOUZKA (203 Czech Republic), Jitka VOSTÁLOVÁ (203 Czech Republic), Vilím ŠIMÁNEK (203 Czech Republic), Jan HRBÁČ (203 Czech Republic, guarantor, belonging to the institution) and David JIROVSKÝ (203 Czech Republic)

Edition

Analytica Chimica Acta, Amsterdam, Elsevier Science publishers, 2016, 0003-2670

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10405 Electrochemistry

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.950

RIV identification code

RIV/00216224:14310/16:00091051

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.aca.2016.06.044

UT WoS

000382249600005

Keywords in English

Carbon fiber microelectrode; Platinization; Spark discharge; 8-oxo-7_8-dihydro-2 '-deoxyguanosine; Amperometric detection; Liquid chromatography

Abstract

V originále

A novel method of carbon fiber microelectrode activation using spark discharge was demonstrated and compared to conventional electrochemical pretreatment by potential cycling. The spark discharge was performed at 800 V between the microelectrode connected to positive pole of the power supply and platinum counter electrode. Spark discharge led both to trimming of the fiber tip into conical shape and to the modification of carbon fiber microelectrode with platinum, as proven by scanning electron microscopy and electron dispersive X-ray spectroscopy. After the characterization of electrochemical properties using ferricyanide voltammetry, the activated electrodes were used for electrochemical analysis of 8-oxo-7,8-dihydro-2'-deoxyguanosine, an oxidative stress marker. Subnanomolar detection limits (0.55 nmol L-1) in high-performance liquid chromatography were achieved for spark platinized electrodes incorporated into the flow detection cell. (C) 2016 Elsevier B.V. All rights reserved.

Citovat

BARTOŠOVÁ, Zdenka, Daniel RIMAN, Vladimír HALOUZKA, Jitka VOSTÁLOVÁ, Vilím ŠIMÁNEK, Jan HRBÁČ and David JIROVSKÝ. A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma (A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosinein human urine and plasma). Analytica Chimica Acta. Amsterdam: Elsevier Science publishers, 2016, vol. 935, September, p. 82-89. ISSN 0003-2670. Available from: https://dx.doi.org/10.1016/j.aca.2016.06.044.

@article{1355815,
   author = {Bartošová, Zdenka and Riman, Daniel and Halouzka, Vladimír and Vostálová, Jitka and Šimánek, Vilím and Hrbáč, Jan and Jirovský, David},
   article_location = {Amsterdam},
   article_number = {September},
   doi = {http://dx.doi.org/10.1016/j.aca.2016.06.044},
   keywords = {Carbon fiber microelectrode; Platinization; Spark discharge; 8-oxo-7_8-dihydro-2 '-deoxyguanosine; Amperometric detection; Liquid chromatography},
   language = {eng},
   issn = {0003-2670},
   journal = {Analytica Chimica Acta},
   title = {A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma},
   volume = {935},
   year = {2016}
}

TY  - JOUR
ID  - 1355815
AU  - Bartošová, Zdenka - Riman, Daniel - Halouzka, Vladimír - Vostálová, Jitka - Šimánek, Vilím - Hrbáč, Jan - Jirovský, David
PY  - 2016
TI  - A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma
JF  - Analytica Chimica Acta
VL  - 935
IS  - September
SP  - 82-89
EP  - 82-89
PB  - Elsevier Science publishers
SN  - 00032670
KW  - Carbon fiber microelectrode
KW  - Platinization
KW  - Spark discharge
KW  - 8-oxo-7_8-dihydro-2 '-deoxyguanosine
KW  - Amperometric detection
KW  - Liquid chromatography
N2  - A novel method of carbon fiber microelectrode activation using spark discharge was demonstrated and compared to conventional electrochemical pretreatment by potential cycling. The spark discharge was performed at 800 V between the microelectrode connected to positive pole of the power supply and platinum counter electrode. Spark discharge led both to trimming of the fiber tip into conical shape and to the modification of carbon fiber microelectrode with platinum, as proven by scanning electron microscopy and electron dispersive X-ray spectroscopy. After the characterization of electrochemical properties using ferricyanide voltammetry, the activated electrodes were used for electrochemical analysis of 8-oxo-7,8-dihydro-2'-deoxyguanosine, an oxidative stress marker. Subnanomolar detection limits (0.55 nmol L-1) in high-performance liquid chromatography were achieved for spark platinized electrodes incorporated into the flow detection cell. (C) 2016 Elsevier B.V. All rights reserved.
ER  -

BARTOŠOVÁ, Zdenka, Daniel RIMAN, Vladimír HALOUZKA, Jitka VOSTÁLOVÁ, Vilím ŠIMÁNEK, Jan HRBÁČ and David JIROVSKÝ. A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosine in human urine and plasma (A comparison of electrochemically pre-treated and spark-platinized carbon fiber microelectrode. Measurement of 8-oxo-7,8-dihydro-2 '-deoxyguanosinein human urine and plasma). \textit{Analytica Chimica Acta}. Amsterdam: Elsevier Science publishers, 2016, vol.~935, September, p.~82-89. ISSN~0003-2670. Available from: https://dx.doi.org/10.1016/j.aca.2016.06.044.

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