A Novel Electrochemiluminscence Sensor for the Detection of Butyl Hydroxy Anisd and Gallic Acid Based on Graphene Quantum Dots

Abstract

Graphene quantum dots (GQDs), with stable photoluminescence (PL) and electrocatalytic activity, have potential application in sensor field. Herein, a facile novel electrochemiluminescence (ECL) sensor based on GQDs and glassy carbon electrode (GCE) was developed to detect Butyl hydroxy anisd (BHA) and Gallic acid. The optimization of ECL detection conditions were investigated. Hence, the sensor exhibited relatively strong luminescence intensity even without the modification of the GCE, which make this sensor system easy to implement. The developed sensor exhibited a linear response ranging from 5 to 160 μM under the optimum conditions. The method displayed the advantages of high sensitivity, good selectivity, wide linear range, low detection limit and fine reproducibility. Moreover, the practicability of the ECL sensing platform in real water samples had shown the satisfactory results, which holds a great potential in the field of pharmaceutical analysis.

Voltammetric Determination of Gallic Acid and its Content in Tea Samples Using Modified Iodine-Coated Platinum Electrode

“…These methods include flow injection analysis, 7 resonance light scattering, 8 high-performance liquid chromatography (HPLC), 9,10 and electrochemical methods. [11][12][13][14][15] All the methods mentioned above are expensive, possess low reproducibility and required highly trained personnel. It, therefore, necessitates the need to develop an accurate, simple, reliable, and fast method for gallic acid analysis in matrices.…”