| BARTOŠOVÁ, Zdenka, Daniel RIMAN, Vladimír HALOUZKA, Jitka VOSTÁLOVÁ, Vilím ŠIMÁNEK, Jan HRBÁČ a 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. Analytica Chimica Acta. Amsterdam: Elsevier Science publishers, 2016, roč. 935, September, s. 82-89. ISSN 0003-2670. Dostupné z: https://dx.doi.org/10.1016/j.aca.2016.06.044. |
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@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 a 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. \textit{Analytica Chimica Acta}. Amsterdam: Elsevier Science publishers, 2016, roč.~935, September, s.~82-89. ISSN~0003-2670. Dostupné z: https://dx.doi.org/10.1016/j.aca.2016.06.044.
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