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Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong

The global shrimp farming industry had a rapid growth in the 1980s due to the high demand for shrimp. Apart from the destruction of mangroves and wetlands, the intensive operation of shrimp aquaculture deteriorated the water quality in the region. Variety of chemicals and biological products were u...

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Main Author: Chan, Chun Foong
Format: Thesis
Published: 2010
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://studentsrepo.um.edu.my/4287/1/MSc_by_Dissertation_SGR04075_CHAN_CHUN_FOONG.pdf
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spelling my.um.stud.42872014-09-25T05:51:49Z Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong Chan, Chun Foong Q Science (General) QD Chemistry The global shrimp farming industry had a rapid growth in the 1980s due to the high demand for shrimp. Apart from the destruction of mangroves and wetlands, the intensive operation of shrimp aquaculture deteriorated the water quality in the region. Variety of chemicals and biological products were used to prevent the outbreaks of diseases in the intensively managed shrimp ponds. Pesticides were used as disinfectands to kill unwanted organisms in the pond. SPME-GC-ECD method was developed for the determination of azinphos-ethyl, chlorphyrifos-methyl, diazinon, dichlorvos, endosulfan-I, endosulfan-II, endosulfan sulfate and malathion from water samples of shrimp aquaculture area in Manjung district, Perak. The optimum SPME method developed for GC-ECD analysis of selected analytes was found to be 30 min of extraction at 40°C under continuous stirring condition; 12 min of desorption at 270°C. No matrix modifications were applied in this study. Recoveries obtained ranged between 90.64% and 124.29% while the limit of detection (LOD) ranged from 0.01 to 5ppb for the targeted compounds.Chlorphyrifosmethyl,diazinon,endosulfan-I, endosulfan-II, endosulfan sulfate and malathion were detected from the water samples whilst azinphos-ethyl and dichlorvos were not detected. 2010 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/4287/1/MSc_by_Dissertation_SGR04075_CHAN_CHUN_FOONG.pdf http://pendeta.um.edu.my/client/default/search/detailnonmodal/ent:$002f$002fSD_ILS$002f796$002fSD_ILS:796869/one?qu=Optimization+of+solid-phase+microextraction+for+the+determination+of+organo-phosphorus+and+organo-chlorine Chan, Chun Foong (2010) Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/4287/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Chan, Chun Foong
Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
description The global shrimp farming industry had a rapid growth in the 1980s due to the high demand for shrimp. Apart from the destruction of mangroves and wetlands, the intensive operation of shrimp aquaculture deteriorated the water quality in the region. Variety of chemicals and biological products were used to prevent the outbreaks of diseases in the intensively managed shrimp ponds. Pesticides were used as disinfectands to kill unwanted organisms in the pond. SPME-GC-ECD method was developed for the determination of azinphos-ethyl, chlorphyrifos-methyl, diazinon, dichlorvos, endosulfan-I, endosulfan-II, endosulfan sulfate and malathion from water samples of shrimp aquaculture area in Manjung district, Perak. The optimum SPME method developed for GC-ECD analysis of selected analytes was found to be 30 min of extraction at 40°C under continuous stirring condition; 12 min of desorption at 270°C. No matrix modifications were applied in this study. Recoveries obtained ranged between 90.64% and 124.29% while the limit of detection (LOD) ranged from 0.01 to 5ppb for the targeted compounds.Chlorphyrifosmethyl,diazinon,endosulfan-I, endosulfan-II, endosulfan sulfate and malathion were detected from the water samples whilst azinphos-ethyl and dichlorvos were not detected.
format Thesis
author Chan, Chun Foong
author_facet Chan, Chun Foong
author_sort Chan, Chun Foong
title Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
title_short Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
title_full Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
title_fullStr Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
title_full_unstemmed Optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / Chan Chun Foong
title_sort optimization of solid-phase microextraction for the determination of organo-phosphorus and organo-chlorine pesticide residues in natural water near aquaculture farms / chan chun foong
publishDate 2010
url http://studentsrepo.um.edu.my/4287/1/MSc_by_Dissertation_SGR04075_CHAN_CHUN_FOONG.pdf
http://pendeta.um.edu.my/client/default/search/detailnonmodal/ent:$002f$002fSD_ILS$002f796$002fSD_ILS:796869/one?qu=Optimization+of+solid-phase+microextraction+for+the+determination+of+organo-phosphorus+and+organo-chlorine
http://studentsrepo.um.edu.my/4287/
_version_ 1738505659798781952
score 13.211869

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