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Basic Red 9 dye encapsulated graphene oxide-montmorillonite composite: Fluorescent and electrochemical sensor for dopamine in presence of ascorbic acid and uric acid

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Title Basic Red 9 dye encapsulated graphene oxide-montmorillonite composite: Fluorescent and electrochemical sensor for dopamine in presence of ascorbic acid and uric acid
 
Creator Kalita, Sarojmoni
Das, Diganta Kumar
 
Subject Basic Red 9
Dopamine
Ascorbic acid
Uric Acid
Fluorescence
Voltammetry
 
Description 834-842
The dye Basic Red 9 has been successfully encapsulated into GO-MMT composite and the probe acts as a “turn on”
fluorescence sensor for dopamine (DA) in presence of its main biological counterpart i.e. ascorbic acid (AA), uric acid (UA)
along with other biologically important ions and molecules. The limit of detection (LOD) for dopamine detection is found to
be 6.57 nM and 5.05 nM in the absence and presence of AA and UA respectively. Glassy carbon electrode modified with the
sensor can successfully distinguish between the peaks of DA, AA and UA by cyclic voltammetry technique. The LOD for
AA, UA and DA have been calculated as 1.165 nM, 0.875 nM and 3.043 nM respectively. The voltammetric detection of
mixture containing DA, AA and UA are free from common interfering ions and species like glucose, cholesterol, Na+, K+ ,
Ca2+, Fe2+.
 
Date 2023-08-16T12:45:24Z
2023-08-16T12:45:28Z
2023-08-16T12:45:24Z
2023-08-16T12:45:28Z
2023-08
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/62454
https://doi.org/10.56042/ijc.v62i8.4767
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.62(08) [August 2023]