Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47161
Title: An approach to the application of microwave-assisted micellar extraction and liquid chromatography with ultraviolet detection to the extraction and determination of organophosphorus pesticides in tomato samples
Authors: Padrón-Sanz, Carolina
Sosa-Ferrera, Zoraida 
Santana-Rodríguez, Jose J. 
UNESCO Clasification: 2301 química analítica
2391 Química ambiental
Keywords: Supercritical-Fluid Extraction
Solvent-Extraction
Organochlorine
Vegetables
Residues, et al
Issue Date: 2005
Publisher: 1060-3271
Journal: Journal of AOAC International 
Abstract: Microwave-assisted micellar extraction methodology was applied to extract a mixture of 8 organophospkorus pesticides from the cuticle of tomato samples prior to analysis by liquid chromatography with ultraviolet detection. This technique provided very good results and was simple, fast, and environmentally friendly. The pesticides under study were extracted using the nonionic surfactants polyoxyethylene 10 lauryl ether (POLE) and oligoethylene glycol monoalkyl ether (Genapol X-080). The optimal extraction variables to be applied were determined for each surfactant and then compared. POLE proved to be the most suitable for the extraction. with recoveries over 70% in the majority and relative standard deviation values under 4.8%. After validation using a tomato sample enriched with a certified mixture, the proposed method was applied to the analysis of organophosphorus p~siicidesin letiuct 628 pepper samples.
URI: http://hdl.handle.net/10553/47161
ISSN: 1060-3271
Source: Journal of AOAC International [ISSN 1060-3271], v. 88 (5), p. 1485-1490
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