Miniaturized Biamperometric Detectors for Electrochemical Detection in Flowing Streams

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00113891" target="_blank" >RIV/00216224:14310/17:00113891 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/17:39911331

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/elan.201700027/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/elan.201700027/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/elan.201700027" target="_blank" >10.1002/elan.201700027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Miniaturized Biamperometric Detectors for Electrochemical Detection in Flowing Streams

Popis výsledku v původním jazyce

Capillary electrochemical detectors with various configurations of electrodes were developed by inserting platinum multielectrodes (tetrodes) or platinum and carbon microelectrodes into the ending of capillaries. The biamperometric mode of detection, without the need of classical reference electrode, was employed in flow injection analysis of dopamine and norepinephrine selected as model samples. The influences of geometric shape of tetrodes, arrangement of electrodes and internal diameter of the capillary were studied thoroughly with respect to intensity of recorded currents. A novel pulse biamperometric technique was employed with the aim to enhance further the recorded currents of dopamine oxidation and to minimize the passivation of electrodes in mixed aqueous-organic carrier solution, which improved considerably the repeatability of measurements. Proposed low-cost microelectrode devices showed good prospects as detectors in simple and miniaturized flow systems, such as flow injection analysis and capillary high-performance liquid chromatography with monolithic columns.

Název v anglickém jazyce

Miniaturized Biamperometric Detectors for Electrochemical Detection in Flowing Streams

Popis výsledku anglicky

Capillary electrochemical detectors with various configurations of electrodes were developed by inserting platinum multielectrodes (tetrodes) or platinum and carbon microelectrodes into the ending of capillaries. The biamperometric mode of detection, without the need of classical reference electrode, was employed in flow injection analysis of dopamine and norepinephrine selected as model samples. The influences of geometric shape of tetrodes, arrangement of electrodes and internal diameter of the capillary were studied thoroughly with respect to intensity of recorded currents. A novel pulse biamperometric technique was employed with the aim to enhance further the recorded currents of dopamine oxidation and to minimize the passivation of electrodes in mixed aqueous-organic carrier solution, which improved considerably the repeatability of measurements. Proposed low-cost microelectrode devices showed good prospects as detectors in simple and miniaturized flow systems, such as flow injection analysis and capillary high-performance liquid chromatography with monolithic columns.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electroanalysis

ISSN

1040-0397

e-ISSN

1521-4109

Svazek periodika

29

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

1670-1673

Kód UT WoS článku

000405310100002

EID výsledku v databázi Scopus

2-s2.0-85017406101