Development and Application of an Off-Line SPE-LC-UV Methodology for the Determination of Penoxsulam in Aquatic Systems Adjacent to Rice Fields

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Anabela Cachada (Author) Other; Catarina Marques (Author) Other; Ruth Pereira (Author) Other; Fernando Goncalves (Author) Other; Armando C Duarte (Author) Other

Journal

Title: Chromatographia

Vol. 71

Pages: 347-350

ISSN: 0009-5893

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 5 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-003-992

DOI: 10.1365/s10337-009-1444-x

Abstract (EN): An accurate, simple, reproducible and sensitive off-line SPE-LC-UV method was developed and validated for the determination of penoxsulam, a new triazolopyrimidine sulphonamide herbicide widely used in rice culture. The method was validated in terms of precision, linearity, detection limit, quantification limit and accuracy. The repeatability and intermediate precision of LC-UV conditions chosen were evaluated, with an RSD always bellow 10%. A limit of detection of 0.07 mu g L(-1) was achieved after SPE concentration. Recovery studies, performed in two different matrixes (run-off water from rice fields and brackish water), ranged from 93 to 105%. The methodology was successfully used to detect penoxsulam in aquatic systems, during an application period in rice fields.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4