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Preparation of Graphene Oxide and their Application for Improving the Properties of the Electrochemical Sensor for the Determination of Bambuterol Hydrochloride in Real Samples

Abstract

In this work, an ion selective electrode modifying with graphene oxide (GO) was developed to determinate BAM by electrochemical method. First of all, composites of electro-active complex and GO was prepared as GO@BAM-TPB through drop-by-drop operation under stirring circumstance. In the next step, a membrane solution for electrode was made by mixing GO@BAM-TPB and film-forming materials and the prepared membrane solution was dipped uniformly onto the surface of bare platinum electrode. A few days later, the modified electrode had been dried spontaneously at room temperature, that could be reserved for use. Adequate characterizations have been done including not only structure and morphology of materials but also electrochemical properties of the modified electrode. We discussed modifying outcomes in both structure and morphology aspects. The parameters of modified electrode were as follows: a lower LOD (3.4×10-7 mol/L), a wider response range (1.0×10-1 to 1.0×10-6 mol/L), and a smaller response time (15s) than the traditional electrodes. Moreover, the modified electrode exhibits good selectivity, reproducibility, lifetime (up to 12 weeks) and pH range (3.5-7.1). Finally, BAM selective electrode was employed for determining BAM in real samples (eg, swine urine), as results shows, it proved to be a reasonable method to the determination of BAM.

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Publication details

The article was received on 23 Oct 2019, accepted on 26 Nov 2019 and first published on 27 Nov 2019


Article type: Paper
DOI: 10.1039/C9AY02286D
Anal. Methods, 2019, Accepted Manuscript

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    Preparation of Graphene Oxide and their Application for Improving the Properties of the Electrochemical Sensor for the Determination of Bambuterol Hydrochloride in Real Samples

    Y. Zhang, Y. E, Y. Wang, D. Li and Y. Liu, Anal. Methods, 2019, Accepted Manuscript , DOI: 10.1039/C9AY02286D

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