Determination of fluquinconazole, pyrimethanil, and clofentezine residues in fruits by liquid chromatography with ultraviolet detection
dc.contributor.author | Navickiene, Sandro [UNESP] | |
dc.contributor.author | Ribeiro, Maria Lúcia [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | |
dc.date.accessioned | 2022-04-28T20:01:30Z | |
dc.date.available | 2022-04-28T20:01:30Z | |
dc.date.issued | 2004-01-01 | |
dc.description.abstract | A simple method was developed for the determination of fluquinconazole, pyrimethanil, and clofentezine in whole fruit; peel; and pulp of mango, apple, and papaya. These compounds were extracted from fruit samples with a mixture of ethyl acetate-n-hexane (1 + 1, v/v). An aliquot (2 mL) of the extract was evaporated to near dryness under a stream of nitrogen, and the residue was dissolved with 2 mL methanol. The analysis was performed by means of liquid chromatography with ultraviolet detection at 254 nm using a gradient solvent system. The method was validated with fortified fruit samples at concentration levels of 0.05, 0.10, 0.20, and 0.50 mg/kg. Average recoveries (4-8 replicates) ranged from 80 to 95% with relative standard deviations between 3.5 and 12.7%. Detection limits ranged from 0.03 to 0.05 mg/kg for fruit pulp and 0.03 mg/kg for whole fruit. The quantitation limits ranged from 0.05 to 0.10 mg/kg for fruit pulp and 0.05 mg/kg for whole fruit. The analytical method was applied to fruit samples obtained from local markets. | en |
dc.description.affiliation | Universidade Estadual Paulista-Unesp Depto. Química Orgânica Instituto de Química, CP 355, 14800-900, Araraquara, Sao Paulo | |
dc.description.affiliationUnesp | Universidade Estadual Paulista-Unesp Depto. Química Orgânica Instituto de Química, CP 355, 14800-900, Araraquara, Sao Paulo | |
dc.format.extent | 435-438 | |
dc.identifier | http://dx.doi.org/10.1093/jaoac/87.2.435 | |
dc.identifier.citation | Journal of AOAC International, v. 87, n. 2, p. 435-438, 2004. | |
dc.identifier.doi | 10.1093/jaoac/87.2.435 | |
dc.identifier.issn | 1060-3271 | |
dc.identifier.scopus | 2-s2.0-2542471574 | |
dc.identifier.uri | http://hdl.handle.net/11449/224603 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of AOAC International | |
dc.source | Scopus | |
dc.title | Determination of fluquinconazole, pyrimethanil, and clofentezine residues in fruits by liquid chromatography with ultraviolet detection | en |
dc.type | Artigo | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Química, Araraquara | pt |
unesp.department | Química Orgânica - IQAR | pt |