Determination of residues of 14 insecticides and metabolites in grapes and peaches by gas chromatography - Mass spectrometry

dc.contributor.author	Kotonia, CA	en
dc.contributor.author	Liapis, KS	en
dc.contributor.author	Ziogas, VN	en
dc.date.accessioned	2014-06-06T06:47:40Z
dc.date.available	2014-06-06T06:47:40Z
dc.date.issued	2007	en
dc.identifier.issn	10184619	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3746
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-34047244363&partnerID=40&md5=897bb2e52e2935ef5c4473593afb8c39	en
dc.subject	Gas-chromatography	en
dc.subject	Grapes	en
dc.subject	Insecticides	en
dc.subject	Mass spectrometry	en
dc.subject	Multiresidue method	en
dc.subject	Peaches	en
dc.subject.other	detection method	en
dc.subject.other	fruit	en
dc.subject.other	gas chromatography	en
dc.subject.other	insecticide	en
dc.subject.other	mass spectrometry	en
dc.subject.other	metabolite	en
dc.subject.other	pesticide residue	en
dc.subject.other	Prunus persica	en
dc.subject.other	Vitaceae	en
dc.title	Determination of residues of 14 insecticides and metabolites in grapes and peaches by gas chromatography - Mass spectrometry	en
heal.type	journalArticle	en
heal.publicationDate	2007	en
heal.abstract	In this study, a multiresidue method has been validated for the quantification and confirmation of 14 insecticides and metabolites in grapes and peaches. A system of GC-MS with Ion Trap technology and external ion source, operated in the electron impact mode, was used for pesticide residues. Fourteen pesticides and metabolites of four different chemical groups (organophosphorus, pyrethroides, carbamates and cyclodiene organochlorine) were determined, and both recoveries and relative standard deviations (RSDs) were calculated at two concentration levels, at the limit of quantification (LOQ) and ten times higher for peaches, and at the LOQ for grapes. For each compound one ion was selected for quantification and at least two more for identification and confirmation. In the case of peaches and at the lower fortification level, recovery values ranged from 84 to 123% for chlorpyrifos ethyl, parathion methyl, paraoxon methyl and a-cypermethrin with RSD values from 7.9 to 33.3%. At the higher fortification level, recoveries were 81.5-91.3% with RSD values from 2.2 to 6.5%. In the case of grapes, recoveries ranged from 56.8 to 112% for methamidophos, endosulfan sulfate, α-endosulfan, paraoxon ethyl and b-endosulfan with RSD values from 1.2 to 10.1%. © by PSP. 2007.	en
heal.journalName	Fresenius Environmental Bulletin	en
dc.identifier.issue	3	en
dc.identifier.volume	16	en
dc.identifier.spage	223	en
dc.identifier.epage	226	en