Application of carbon electrodes modified with a mercury layer
of a different thickness for studies of the adsorption and
kinetics of phase transients of cytidine.

J 2002

Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine.

HASOŇ, Stanislav a Vladimír VETTERL

Základní údaje

Originální název

Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine.

Autoři

HASOŇ, Stanislav (203 Česká republika) a Vladimír VETTERL (203 Česká republika, garant)

Vydání

Journal of Electroanalytical Chemistry, The Netherlands, Elsevier, 2002, 0022-0728

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10610 Biophysics

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.027

Kód RIV

RIV/00216224:14310/02:00007358

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

cytidine adlayers; two-dimensional condensation; nucleation and growth; mercury film electrodes; glassy carbon electrodes; pyrolytic graphite electrodes;

Štítky

cytidine adlayers, glassy carbon electrodes, mercury film electrodes, nucleation and growth, pyrolytic graphite electrodes, two-dimensional condensation

Změněno: 27. 1. 2003 21:37, prof. RNDr. Vladimír Vetterl, DrSc.

Anotace

V originále

The kinetics of phase transients of cytidine adsorbed at pyrolytic graphite electrodes, glassy caron electrodes, and the same electrodes modified with a mercury layer (mercury film electrodes)was studied by chronoamperometry (j-t curves and capacitance measurements (C-t curves). In acidic solution (pH 5) the two-dimensional condensation of adsorbed cytidine molecules and formation of a compact layer takes place only in one potential region. In alkaline solution (pH 8.3) cytidine forms two different physisorbed condensed layers at the mercury film electrodes. The phase trasients between the dilute and compact cytidine layers are about three times faster in acid solution than in alkaline solution. As long as the thickness of the mercury layer was greater than 2um, pronounced current maxima characteristic for the nucleation process were observed on j-t curves during phase transients between dilute and compact layers.

Návaznosti

GV204/97/K084, projekt VaV

Název: Elektrody modifikované nukleovými kyselinami a bílkovinami. Nové nástroje v biochemickém a biomedicínském výzkumu

Investor: Grantová agentura ČR, Elektrody modifikované nukleovými kyselinami a bílkovinami. Nové nástroje v biochemickém a biomedicínském výzkumu

IAA4004002, projekt VaV

Název: Struktura a interakce nukleových kyselin a polypeptidů na površích kovů

Investor: Akademie věd ČR, Struktura a interakce nukleových kyselin a polypeptidů na površích kovů

Citovat

HASOŇ, Stanislav a Vladimír VETTERL. Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine. Journal of Electroanalytical Chemistry. The Netherlands: Elsevier, 2002, roč. 536, č. 1, s. 19-35. ISSN 0022-0728.

@article{483753,
   author = {Hasoň, Stanislav and Vetterl, Vladimír},
   article_location = {The Netherlands},
   article_number = {1},
   keywords = {cytidine adlayers; two-dimensional condensation; nucleation and growth; mercury film electrodes; glassy carbon electrodes; pyrolytic graphite electrodes;},
   language = {eng},
   issn = {0022-0728},
   journal = {Journal of Electroanalytical Chemistry},
   title = {Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine.},
   volume = {536},
   year = {2002}
}

TY  - JOUR
ID  - 483753
AU  - Hasoň, Stanislav - Vetterl, Vladimír
PY  - 2002
TI  - Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine.
JF  - Journal of Electroanalytical Chemistry
VL  - 536
IS  - 1
SP  - 19
EP  - 19
PB  - Elsevier
SN  - 00220728
KW  - cytidine adlayers
KW  - two-dimensional condensation
KW  - nucleation and growth
KW  - mercury film electrodes
KW  - glassy carbon electrodes
KW  - pyrolytic graphite electrodes;
N2  - The kinetics of phase transients of cytidine adsorbed at pyrolytic graphite electrodes, glassy caron electrodes, and the same electrodes modified with a mercury layer (mercury film electrodes)was studied by chronoamperometry (j-t curves and capacitance measurements (C-t curves). In acidic solution (pH 5) the two-dimensional condensation of adsorbed cytidine molecules and formation of a compact layer takes place only in one potential region. In alkaline solution (pH 8.3) cytidine forms two different physisorbed condensed layers at the mercury film electrodes. The phase trasients between the dilute and compact cytidine layers are about three times faster in acid solution than in alkaline solution. As long as the thickness of the mercury layer was greater than 2um, pronounced current maxima characteristic for the nucleation process were observed on j-t curves during phase transients between dilute and compact layers.
ER  -

HASOŇ, Stanislav a Vladimír VETTERL. Application of carbon electrodes modified with a mercury layer of a different thickness for studies of the adsorption and kinetics of phase transients of cytidine. \textit{Journal of Electroanalytical Chemistry}. The Netherlands: Elsevier, 2002, roč.~536, č.~1, s.~19-35. ISSN~0022-0728.

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