Cover Image

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

In 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 samp...

Full description

Saved in:
Bibliographic Details
Main Authors: Khor L., Chai M.K.
Other Authors: 57110126900
Format: Article
Published: Malaysian Abstracting and Indexing System 2023
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.uniten.dspace-21963
record_format dspace
spelling my.uniten.dspace-219632023-05-16T10:46:19Z Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix Khor L. Chai M.K. 57110126900 24172523100 In 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. Final 2023-05-16T02:46:19Z 2023-05-16T02:46:19Z 2014 Article 10.22452/mjs.vol33no1.10 2-s2.0-84957794164 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957794164&doi=10.22452%2fmjs.vol33no1.10&partnerID=40&md5=25ae2eae3b510c496ac69443aa431ef6 https://irepository.uniten.edu.my/handle/123456789/21963 33 1 89 98 All Open Access, Bronze, Green Malaysian Abstracting and Indexing System Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description In 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.
author2 57110126900
author_facet 57110126900
Khor L.
Chai M.K.
format Article
author Khor L.
Chai M.K.
spellingShingle Khor L.
Chai M.K.
Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
author_sort Khor L.
title Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
title_short Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
title_full Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
title_fullStr Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
title_full_unstemmed Development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
title_sort development and validation of dispersive liquid-liquid microextraction for the determination of multiclass pesticide residues in complex food matrix
publisher Malaysian Abstracting and Indexing System
publishDate 2023
_version_ 1806428426455744512
score 13.223943

Similar Items