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Data · collection · 2015

Synergistic Effect of Graphene and Multiwalled Carbon Nanotubes on a Glassy Carbon Electrode for Simultaneous Determination of Uric Acid and Dopamine in the Presence of Ascorbic Acid

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A poly(diallyldimethylammonium chloride)-graphene-multiwalled carbon nanotube modified glassy carbon electrode was fabricated and evaluated by cyclic voltammetry and differential pulse voltammetry.

Description

The modified electrode offered high sensitivity, selectivity, excellent long-term stability, and electrocatalytic activity for uric acid and dopamine. This sensor showed wide linear dynamic ranges of 5.0 to 350.0 µmol L −1 for uric acid and 10.0 to 400.0 µmol L −1 for dopamine in the presence of 500 µmol L −1 ascorbic acid.

The limits of detection were 0.13 for uric acid and 0.55 µmol L −1 for dopamine. This functionalized electrode has potential application in bioanalysis and biomedicine.

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Provenance · 2 source records, 17 field assertions
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DataCite10.6084/m9.figshare.c.200162014 d agoJSON v1
DataCite10.6084/m9.figshare.c.2001620.v114 d agoJSON v1
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