Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography

Kaedah analisis yang mudah dan tepat iaitu pengekstrakan mikro fasa pepejal (SPME) bagi menentukan 11 residu pestisid jenis organofosforus (etoprofos, sulfotep, diazinon, tolklofos-metil, fenitrotion, klorpirifos, isofenfos, metidation, etion, triazofos, leptofos) dalam tiga jenis sayur – sayuran...

Full description

Saved in:

Bibliographic Details
Main Author:	Sapahin, Haizarul Aida
Format:	Thesis
Language:	English
Published:	2016
Subjects:	QD1-999 Chemistry
Online Access:	http://eprints.usm.my/31791/1/HAIZARUL_AIDA_BINTI_SAPAHIN_24%28NN%29.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.31791
record_format	uketd_dc
spelling	my-usm-ep.317912019-04-12T05:25:25Z Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography 2016-03 Sapahin, Haizarul Aida QD1-999 Chemistry Kaedah analisis yang mudah dan tepat iaitu pengekstrakan mikro fasa pepejal (SPME) bagi menentukan 11 residu pestisid jenis organofosforus (etoprofos, sulfotep, diazinon, tolklofos-metil, fenitrotion, klorpirifos, isofenfos, metidation, etion, triazofos, leptofos) dalam tiga jenis sayur – sayuran tempatan (kobis, kailan, sawi) telah dibangunkan menggunakan alat kromatografi gas dengan pengesan fotometri nyala (GC-FPD). Parameter penting yang mempengaruhi kecekapan pengekstrakan (jenis gentian, kaedah pengekstrakan, masa pengekstrakan, penambahan garam, masa dan suhu penyaherapan) telah dikaji secara sistematik. Perbandingan empat jenis gentian yang biasa digunakan secara komersial iaitu 50/30 μm divinilbenzena / Carboxen / polidimetilsiloksana (DVB / CAR / PDMS), 65 μm polydimetilsiloksana / divinilbenzena (PDMS / DVB), 100 μm polidimetilsiloksana (PDMS) dan 85 μm poliakrilat (PA) telah dilakukan. Gentian jenis PA menunjukkan prestasi yang terbaik dan telah digunakan untuk mendapatkan keadaan yang optimum dan digunakan untuk kaedah tentusah. A simple analytical method based on solid-phase microextraction (SPME) followed by gas chromatography-flame photometric detection (GC-FPD) for the simultaneous determination of eleven organophosphorus pesticide residues (ethoprophos, sulphotep, diazinon, tolclofos-methyl, fenitrothion, chlorpyrifos, isofenphos, methidathion, ethion, triazophos, leptophos) in three types vegetables samples (cabbage, kale and mustard) was developed. Important parameters that influence the extraction efficiency (i.e., fibre type, extraction modes, extraction time, salt addition, desorption time and temperature) were systematically investigated. Four types of commercially available fibres namely 50/30 μm divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS), 65 μm polydimethylsiloxane/divinylbenzene (PDMS/DVB), 100 μm polydimethylsiloxane (PDMS), and 85 μm polyacrylate (PA) were evaluated. PA fibre exhibited the best performance and was used for the rest of the studies. 2016-03 Thesis http://eprints.usm.my/31791/ http://eprints.usm.my/31791/1/HAIZARUL_AIDA_BINTI_SAPAHIN_24%28NN%29.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kimia (School of Chemical Sciences)
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QD1-999 Chemistry
spellingShingle	QD1-999 Chemistry Sapahin, Haizarul Aida Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
description	Kaedah analisis yang mudah dan tepat iaitu pengekstrakan mikro fasa pepejal (SPME) bagi menentukan 11 residu pestisid jenis organofosforus (etoprofos, sulfotep, diazinon, tolklofos-metil, fenitrotion, klorpirifos, isofenfos, metidation, etion, triazofos, leptofos) dalam tiga jenis sayur – sayuran tempatan (kobis, kailan, sawi) telah dibangunkan menggunakan alat kromatografi gas dengan pengesan fotometri nyala (GC-FPD). Parameter penting yang mempengaruhi kecekapan pengekstrakan (jenis gentian, kaedah pengekstrakan, masa pengekstrakan, penambahan garam, masa dan suhu penyaherapan) telah dikaji secara sistematik. Perbandingan empat jenis gentian yang biasa digunakan secara komersial iaitu 50/30 μm divinilbenzena / Carboxen / polidimetilsiloksana (DVB / CAR / PDMS), 65 μm polydimetilsiloksana / divinilbenzena (PDMS / DVB), 100 μm polidimetilsiloksana (PDMS) dan 85 μm poliakrilat (PA) telah dilakukan. Gentian jenis PA menunjukkan prestasi yang terbaik dan telah digunakan untuk mendapatkan keadaan yang optimum dan digunakan untuk kaedah tentusah. A simple analytical method based on solid-phase microextraction (SPME) followed by gas chromatography-flame photometric detection (GC-FPD) for the simultaneous determination of eleven organophosphorus pesticide residues (ethoprophos, sulphotep, diazinon, tolclofos-methyl, fenitrothion, chlorpyrifos, isofenphos, methidathion, ethion, triazophos, leptophos) in three types vegetables samples (cabbage, kale and mustard) was developed. Important parameters that influence the extraction efficiency (i.e., fibre type, extraction modes, extraction time, salt addition, desorption time and temperature) were systematically investigated. Four types of commercially available fibres namely 50/30 μm divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS), 65 μm polydimethylsiloxane/divinylbenzene (PDMS/DVB), 100 μm polydimethylsiloxane (PDMS), and 85 μm polyacrylate (PA) were evaluated. PA fibre exhibited the best performance and was used for the rest of the studies.
format	Thesis
qualification_level	Master's degree
author	Sapahin, Haizarul Aida
author_facet	Sapahin, Haizarul Aida
author_sort	Sapahin, Haizarul Aida
title	Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
title_short	Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
title_full	Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
title_fullStr	Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
title_full_unstemmed	Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography
title_sort	determination of organophosphorus pesticide residues in several local vegetables using solid phase microextraction coupled with gas chromatography
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kimia (School of Chemical Sciences)
publishDate	2016
url	http://eprints.usm.my/31791/1/HAIZARUL_AIDA_BINTI_SAPAHIN_24%28NN%29.pdf
_version_	1747820489962684416

Determination Of Organophosphorus Pesticide Residues In Several Local Vegetables Using Solid Phase Microextraction Coupled With Gas Chromatography

Similar Items