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Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix

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dc.citedby2
dc.contributor.authorKhor L.en_US
dc.contributor.authorChai M.K.en_US
dc.contributor.authorid57110126900en_US
dc.contributor.authorid24172523100en_US
dc.date.accessioned2023-05-16T02:46:19Z
dc.date.available2023-05-16T02:46:19Z
dc.date.issued2014
dc.description.abstractIn this study, dispersive liquid-liquid microextraction (DLLME) which is known for its simplicity, rapidity and high recovery was developed coupling with gas chromatography-flame ionization detector (GC-FID) for the determination of pesticides of different chemical groups in tomato and cucumber samples. Parameters affecting the extraction efficiency of DLLME such as types and volume of extraction solvent and dispersive solvent, extraction time and ionic strength of aqueous solution were studied and optimized. Under the optimized conditions (0.8 mL acetone, dispersive solvent; 14.2 ?L tetrachloroethylene, extraction solvent; 20 s extraction time; no salt addition), the relative recoveries of pesticides from tomato and cucumber samples at a dilution factor of 1:25 were in the range of 94.58-103.34% and 96.46-109.45% respectively. The limits of detections (LODs) of all pesticides except diuron from tomato and cucumber extracts were ranged from 7.5-15 ?g/L and 15-39 ?g/L respectively. All the LODs of pesticides except diuron extracted from both tomato and cucumber extracts using the proposed DLLME method coupled with GC-FID were still found to be lower than the maximum residue levels (MRLs) established by European Union and / or Codex Alimentarius.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.22452/mjs.vol33no1.10
dc.identifier.epage98
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84957794164
dc.identifier.spage89
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84957794164&doi=10.22452%2fmjs.vol33no1.10&partnerID=40&md5=25ae2eae3b510c496ac69443aa431ef6
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/21963
dc.identifier.volume33
dc.publisherMalaysian Abstracting and Indexing Systemen_US
dc.relation.ispartofAll Open Access, Bronze, Green
dc.sourceScopus
dc.sourcetitleMalaysian Journal of Science
dc.titleDevelopment and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrixen_US
dc.typeArticleen_US
dspace.entity.typePublication
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