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

Result code in 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>
Alternative codes found
RIV/61989592:15310/15:33156401
Result on the web
<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>

Result language
angličtina
Original language name
Sparked-bismuth oxide screen-printed electrodes for the determination of riboflavin in the sub-nanomolar range in non-deoxygenated solutions
Original language description
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.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
—

Project
<a href="/en/project/GA15-05198S" target="_blank" >GA15-05198S: Nanostructured metal layers on conductive and semiconductive substrates as a sensing platform for application in chemical and biomedical analysis</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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