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...
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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 |