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Electrochemical determination of caffeine in beverage using graphene oxide modified glassy carbon electrode

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Title Electrochemical determination of caffeine in beverage using graphene oxide modified glassy carbon electrode
 
Creator Murugan, E
Poongan, A
 
Subject Beverages
Caffeine
Cyclic Voltammetry
Differential Pulse
Graphene oxide
 
Description 528-536
Graphene oxide (GO) has been synthesized through simple experimental method and used for surface modification of
glassy carbon electrode, thus developed a new efficient GO/GCE as a sensor for identification and quantification of Caffeine
in beverage samples. Common analytical techniques have been employed to establish the physiochemical properties of
graphene oxide. The electro catalytic activity GO/GCE has been examined towards sensing and quantification of caffeine
through Cyclic voltammetry and Differential pulse voltammetry. The results show high sensitivity with a wide linear range
in concentration 3.2-183 µM and low detection limit (LOD) 0.043 µM. In addition, in order to inspect the real time
application of GO/GCE, it has been also employed to determine the concentration of caffeine in cola, Red bull and coffee
samples.Very low LOD has been observed for caffeine even in real sample analysis and hence this electrode can very well
be expended for real time application and thus enable to maintain the quality control of the food samples.
 
Date 2021-12-24T06:02:49Z
2021-12-24T06:02:49Z
2021-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscair.res.in/handle/123456789/58696
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.28(5) [September 2021]