Electrochemical behaviour and square wave voltammetry of the rice herbicides molinate, bensulfuron-methyl, mefenacet and thiobencarb

• Type: Article in International Scientific Journal
• Date: 1999

Authors

Garrido, EM (Author) Other; Lima, JLFC (Author) FFUP; Delerue Matos, CM (Author) Other; Brett, AMO (Author) Other

Journal

Title: International Journal of Environmental Analytical Chemistry

Vol. 75 No. 1

Pages: 149-157

ISSN: 0306-7319

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-001-5TR

DOI: 10.1080/03067319908047307

Abstract (EN): Cyclic, differential pulse and square wave voltammetry were applied to develop an electroanalytical procedure for the determination of a group of herbicides used to treat rice crops: molinate, bensulfuron-methyl, mefenacet and thiobencarb. The oxidation mechanism causes adsorption problems and consequent poisoning of the electrode surface by the products of the electrochemical reaction. Parameters such as pH, frequency and electrochemical electrode surface treatment were optimized. The analytical methodology developed using square wave voltammetry was applied to the determination of molinate and bensulfuron-methyl in simple or mixed commercial products.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9