Electrochemical Determination of the Herbicide Bentazone Using a Carbon Nanotube beta-Cyclodextrin Modified Electrode

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Rahemi, V (Author) Other; Garrido, JMPJ (Author) Other; Borges, F (Author) FCUP; Brett, CMA (Author) Other; Garrido, EMPJ (Author) Other

Journal

Title: Electroanalysis

Vol. 25

ISSN: 1040-0397

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 28 Citations

Scopus - 31 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-008-F1Y

Abstract (EN): An electrochemical sensor has been developed for the determination of the herbicide bentazone, based on a GC electrode modified by a combination of multiwalled carbon nanotubes (MWCNT) with ß-cyclodextrin (ß-CD) incorporated in a polyaniline film. The results indicate that the ß-CD/MWCNT modified GC electrode exhibits efficient electrocatalytic oxidation of bentazone with high sensitivity and stability. A cyclic voltammetric method to determine bentazone in phosphate buffer solution at pH6.0, was developed, without any previous extraction, clean-up, or derivatization steps, in the range of 10-80¿molL-1, with a detection limit of 1.6¿molL-1 in water. The results were compared with those obtained by an established HPLC technique. No statistically significant differences being found between both methods. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Language: English

Type (Professor's evaluation): Scientific