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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Antibiotic Detection in Urine Using Electrochemical Sensors Based on Vertically Aligned Carbon Nanotubes

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Author(s):
Moraes, Fernando C. [1] ; Silva, Tiago A. [1] ; Cesarino, Ivana [1] ; Lanza, Marcos R. V. [1] ; Machado, Sergio A. S. [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Electroanalysis; v. 25, n. 9, p. 2092-2099, SEP 2013.
Web of Science Citations: 16
Abstract

A sensitive way to determine levofloxacin using a sensor based on vertical aligned carbon nanotubes is described. The morphology and the electrochemical performance of the electrodes were characterised by atomic force microscopy, cyclic voltammetry and square wave voltammetry. A scan-rate study and electrochemical impedance spectroscopy showed that the levofloxacin oxidation product is adsorbed on the electrode surface. Differential pulse voltammetry in phosphate-buffer solution allowed the development of a method to determine levofloxacin levels in the range of 1.0-10.0 mu molL(-1), with a detection limit of 75.2nmolL(-1). The proposed sensor was successfully applied in the determination of levofloxacin in urine, and the obtained results were in full agreement with those from the HPLC procedure. (AU)

FAPESP's process: 10/11049-2 - Development and applications of electrochemical sensors based on aligned carbon nanotubes for endocrine disrupting detection in environmental samples
Grantee:Fernando Cruz de Moraes
Support Opportunities: Scholarships in Brazil - Post-Doctoral