VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A
PENCIL GRAPHITE ELECTRODE

D 2015

VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE

RAVANDEH, Mehdi a Libuše TRNKOVÁ

Základní údaje

Originální název

VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE

Autoři

RAVANDEH, Mehdi a Libuše TRNKOVÁ

Vydání

1. vyd. Brno, XV. Workshop of Physical Chemists and Electrochemists, od s. 150-153, 4 s. 2015

Nakladatel

Masarykova univerzita

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10403 Physical chemistry

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00083028

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-210-7857-4

Klíčová slova česky

guanosin; guanosin monofosfát; PeGE; 8-oxoguaninová skupina; cyklická voltametrie; eliminační voltametrická procedura

Klíčová slova anglicky

guanosine; guanosine monophosphate; PeGE; 8-oxoguanien moiety; cyclic voltammetry; elimination voltammetric procedure

Změněno: 3. 6. 2015 22:19, Mehdi Ravandeh

Anotace

V originále

Guanosine (Guo) and guanosine monophosphate (GMP) are noted for their biological effects in human system. In this study, the voltammetry of Guo and GMP on pencil graphite electrode (PeGE) was studied. In the first voltammetric cycle, oxidation peaks at ca. 1.1 V vs. Ag/AgCl were observed for both compounds. In the second cycle at about 0.6 V for Guo and GMP an additional oxidation peak was found. The further electrochemical experiments indicated that the new peak corresponds to 8-oxoguanine moiety which was after the oxidation process of Guo or GMP adsorbed on PeGE surface. The intensity of 8-oxoguanine peak for Guo was higher than for the GMP, that is probably due to the effect of the phosphate group of GMP. The effect of pH on both the first and the second cycle is manifested by negative shift of oxidation signals with increasing of pH. In addition, the voltammograms of Guo and GMP were analyzed using the elimination function E4, indicating the adsorption processes for both Guo and GMP by the signal in a peak-counterpeak form.

Návaznosti

LH13053, projekt VaV

Název: Chemická a elektrochemická analýza purinových derivátů a jejich komplexů s mědí (Akronym: CECAP)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Chemická a elektrochemická analýza purinových derivátů

MUNI/A/1452/2014, interní kód MU

Název: Vývoj metod a instrumentace pro analýzu biologicky významných látek 2015

Investor: Masarykova univerzita, Vývoj metod a instrumentace pro analýzu biologicky významných látek 2015, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

RAVANDEH, Mehdi a Libuše TRNKOVÁ. VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE. Online. In Libuše Trnková. XV. Workshop of Physical Chemists and Electrochemists. 1. vyd. Brno: Masarykova univerzita, 2015, s. 150-153. ISBN 978-80-210-7857-4.

@inproceedings{1300378,
   author = {Ravandeh, Mehdi and Trnková, Libuše},
   address = {Brno},
   booktitle = {XV. Workshop of Physical Chemists and Electrochemists},
   edition = {1.},
   editor = {Libuše Trnková},
   keywords = {guanosine; guanosine monophosphate; PeGE; 8-oxoguanien moiety; cyclic voltammetry; elimination voltammetric procedure},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Brno},
   isbn = {978-80-210-7857-4},
   pages = {150-153},
   publisher = {Masarykova univerzita},
   title = {VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE},
   year = {2015}
}

TY  - CONF
ID  - 1300378
AU  - Ravandeh, Mehdi - Trnková, Libuše
PY  - 2015
TI  - VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE
PB  - Masarykova univerzita
CY  - Brno
SN  - 9788021078574
KW  - guanosine
KW  - guanosine monophosphate
KW  - PeGE
KW  - 8-oxoguanien moiety
KW  - cyclic voltammetry
KW  - elimination voltammetric procedure
N2  - Guanosine (Guo) and guanosine monophosphate (GMP) are noted for their biological effects in human system. In this study, the voltammetry of Guo and GMP on pencil graphite electrode (PeGE) was studied. In the first voltammetric cycle, oxidation peaks at ca. 1.1 V vs. Ag/AgCl were observed for both compounds. In the second cycle at about 0.6 V for Guo and GMP an additional oxidation peak was found. The further electrochemical experiments indicated that the new peak corresponds to 8-oxoguanine moiety which was after the oxidation process of Guo or GMP adsorbed on PeGE surface. The intensity of 8-oxoguanine peak for Guo was higher than for the GMP, that is probably due to the effect of the phosphate group of GMP. The effect of pH on both the first and the second cycle is manifested by negative shift of oxidation signals with increasing of pH. In addition, the voltammograms of Guo and GMP were analyzed using the elimination function E4, indicating the adsorption processes for both Guo and GMP by the signal in a peak-counterpeak form.
ER  -

RAVANDEH, Mehdi a Libuše TRNKOVÁ. VOLTAMMETRY OF GUANOSINE AND GUANOSINE MONOPHOSPHATE ON A PENCIL GRAPHITE ELECTRODE. Online. In Libuše Trnková. \textit{XV. Workshop of Physical Chemists and Electrochemists}. 1. vyd. Brno: Masarykova univerzita, 2015, s.~150-153. ISBN~978-80-210-7857-4.

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