Silver Amalgam Tubular Detector Combined with Platinum Auxiliary Electrode for Electrochemical Measurements in Flow Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00510103" target="_blank" >RIV/61388955:_____/19:00510103 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/19:10402078

Výsledek na webu

<a href="http://hdl.handle.net/11104/0300655" target="_blank" >http://hdl.handle.net/11104/0300655</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/elan.201900049" target="_blank" >10.1002/elan.201900049</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silver Amalgam Tubular Detector Combined with Platinum Auxiliary Electrode for Electrochemical Measurements in Flow Systems

Popis výsledku v původním jazyce

A new type of tubular detector with platinum auxiliary electrode inside the silver amalgam tube (TD+AuxE) was proposed, fabricated, tested and compared with a typical silver amalgam tubular detector developed earlier. Non-stop-flow differential pulse voltammetric anodic stripping method (AS-DPV) and amperometric method in a glucose oxidase biosensor arrangement were tested. Both detectors were applied for AS-DPV detection in flow systems for the first time. Solutions of zinc and cadmium cations were used as the testing species for voltammetry, and detection of oxygen concentration was used for amperometry. All these experiments require application of highly negative potentials, which is possible to realize with detectors made of silver solid amalgam. The proposed combination of TD+AuxE provides a much greater current response than the arrangement with three individual electrodes. All relevant parameters were optimized for the developed TD+AuxE. The simple and fast measuring protocol for the determination of the zinc content in commercial food supplement tablets has been developed.

Název v anglickém jazyce

Silver Amalgam Tubular Detector Combined with Platinum Auxiliary Electrode for Electrochemical Measurements in Flow Systems

Popis výsledku anglicky

A new type of tubular detector with platinum auxiliary electrode inside the silver amalgam tube (TD+AuxE) was proposed, fabricated, tested and compared with a typical silver amalgam tubular detector developed earlier. Non-stop-flow differential pulse voltammetric anodic stripping method (AS-DPV) and amperometric method in a glucose oxidase biosensor arrangement were tested. Both detectors were applied for AS-DPV detection in flow systems for the first time. Solutions of zinc and cadmium cations were used as the testing species for voltammetry, and detection of oxygen concentration was used for amperometry. All these experiments require application of highly negative potentials, which is possible to realize with detectors made of silver solid amalgam. The proposed combination of TD+AuxE provides a much greater current response than the arrangement with three individual electrodes. All relevant parameters were optimized for the developed TD+AuxE. The simple and fast measuring protocol for the determination of the zinc content in commercial food supplement tablets has been developed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-03868S" target="_blank" >GA17-03868S: Nové metody elektrochemického sledování biologicky aktivních organických látek v environmentálních, biologických a potravinových matricích</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Electroanalysis

ISSN

1040-0397

e-ISSN

—

Svazek periodika

31

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

1878-1887

Kód UT WoS článku

000491476600006

EID výsledku v databázi Scopus

2-s2.0-85063900297