Sparked-bismuth oxide screen-printed electrodes for the determination of riboflavin in the sub-nanomolar range in non-deoxygenated solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00083100" target="_blank" >RIV/00216224:14310/15:00083100 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/15:33156401

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.electacta.2015.03.056" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2015.03.056</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2015.03.056" target="_blank" >10.1016/j.electacta.2015.03.056</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sparked-bismuth oxide screen-printed electrodes for the determination of riboflavin in the sub-nanomolar range in non-deoxygenated solutions

Popis výsledku v původním jazyce

Despite their outstanding performance for the stripping voltammetric detection of trace metals, bismuth electrodes show poor sensitivity for the cathodic detection of organic compounds. Moreover, oxygen removal from samples is recommended to lower the background signal, which limits their application to on-site analysis. Herein, we propose recently introduced sparked-bismuth oxide screen printed electrodes for the cathodic detection of riboflavin, a reducible organic compound. The ultra-sensitive determination of riboflavin in the sub-nanomolar range in the presence of dissolved oxygen is demonstrated. After electroless preconcentration for 60 s, electrodes showed a linear response over the concentration range 1-100 nmol L-1 riboflavin, while the limitof detection (S/N = 3) was found to be 0.7 nmol L-1 riboflavin, ca. 140-fold lower than that has been achieved with electroplated bismuth electrodes.

Název v anglickém jazyce

Sparked-bismuth oxide screen-printed electrodes for the determination of riboflavin in the sub-nanomolar range in non-deoxygenated solutions

Popis výsledku anglicky

Despite their outstanding performance for the stripping voltammetric detection of trace metals, bismuth electrodes show poor sensitivity for the cathodic detection of organic compounds. Moreover, oxygen removal from samples is recommended to lower the background signal, which limits their application to on-site analysis. Herein, we propose recently introduced sparked-bismuth oxide screen printed electrodes for the cathodic detection of riboflavin, a reducible organic compound. The ultra-sensitive determination of riboflavin in the sub-nanomolar range in the presence of dissolved oxygen is demonstrated. After electroless preconcentration for 60 s, electrodes showed a linear response over the concentration range 1-100 nmol L-1 riboflavin, while the limitof detection (S/N = 3) was found to be 0.7 nmol L-1 riboflavin, ca. 140-fold lower than that has been achieved with electroplated bismuth electrodes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA15-05198S" target="_blank" >GA15-05198S: Nanostrukturované kovové vrstvy na vodivých a polovodivých substrátech pro aplikace v chemické a biomedicínské analýze</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Svazek periodika

165

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

410-415

Kód UT WoS článku

000353499400053

EID výsledku v databázi Scopus

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