Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari

The residues of chlorpyrifos in apple (Malus domestica) were analyzed by method of solid phase microextraction (SPME) coupled to gas chromatography with mass spectrometry detector (GC-MS). Experiments were carried out to optimize the SPME conditions in order to enhance the fiber performance an...

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Main Author:	Mohd Zahari, Mohd Zudi
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2008
Online Access:	http://ir.uitm.edu.my/id/eprint/830/ http://ir.uitm.edu.my/id/eprint/830/1/PPb_MOHD%20ZUDI%20MOHD%20ZAHARI%20AS%2008_5.pdf

id	uitm-830
recordtype	eprints
spelling	uitm-8302017-05-15T03:18:58Z http://ir.uitm.edu.my/id/eprint/830/ Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari Mohd Zahari, Mohd Zudi The residues of chlorpyrifos in apple (Malus domestica) were analyzed by method of solid phase microextraction (SPME) coupled to gas chromatography with mass spectrometry detector (GC-MS). Experiments were carried out to optimize the SPME conditions in order to enhance the fiber performance and obtain high amount of chlorpyrifos extracted. It was found that the optimum SPME condition was extraction temperature of 60o C and extraction time of 20 min. The headspace SPME extraction mode was applied to determine chlorpyrifos residues in apple after being exposed to the pesticides. The effects of soaking treatments using tap water and non toxic solutions namely 10% (w/v) salt solution and 10% (v/v) vinegar solution were investigated with measurement of chlorpyrifos reduction in contaminated apple after treatments were implemented. The results showed that the salt solution was the most effective solution for chlorpyrifos removal at 84.84%, whereas soaking with tap water was found to be the least effective with 66.25% and the reduction of chlorpyrifos residues was 74% using vinegar. Faculty of Applied Sciences 2008 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/830/1/PPb_MOHD%20ZUDI%20MOHD%20ZAHARI%20AS%2008_5.pdf Mohd Zahari, Mohd Zudi (2008) Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
description	The residues of chlorpyrifos in apple (Malus domestica) were analyzed by method of solid phase microextraction (SPME) coupled to gas chromatography with mass spectrometry detector (GC-MS). Experiments were carried out to optimize the SPME conditions in order to enhance the fiber performance and obtain high amount of chlorpyrifos extracted. It was found that the optimum SPME condition was extraction temperature of 60o C and extraction time of 20 min. The headspace SPME extraction mode was applied to determine chlorpyrifos residues in apple after being exposed to the pesticides. The effects of soaking treatments using tap water and non toxic solutions namely 10% (w/v) salt solution and 10% (v/v) vinegar solution were investigated with measurement of chlorpyrifos reduction in contaminated apple after treatments were implemented. The results showed that the salt solution was the most effective solution for chlorpyrifos removal at 84.84%, whereas soaking with tap water was found to be the least effective with 66.25% and the reduction of chlorpyrifos residues was 74% using vinegar.
format	Student Project
author	Mohd Zahari, Mohd Zudi
spellingShingle	Mohd Zahari, Mohd Zudi Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
author_facet	Mohd Zahari, Mohd Zudi
author_sort	Mohd Zahari, Mohd Zudi
title	Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
title_short	Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
title_full	Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
title_fullStr	Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
title_full_unstemmed	Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari
title_sort	determination of chlorpyrifos residues in apple (malus domestica) before and after soaking treatments using solid phase microextraction (spme) and gas chromatography mass spectrometry detector (gc-msd) / mohd zudi mohd zahari
publisher	Faculty of Applied Sciences
publishDate	2008
url	http://ir.uitm.edu.my/id/eprint/830/ http://ir.uitm.edu.my/id/eprint/830/1/PPb_MOHD%20ZUDI%20MOHD%20ZAHARI%20AS%2008_5.pdf
first_indexed	2023-09-18T22:45:04Z
last_indexed	2023-09-18T22:45:04Z
_version_	1777417169984815104

Determination of chlorpyrifos residues in apple (Malus domestica) before and after soaking treatments using solid phase microextraction (SPME) and gas Chromatography mass spectrometry detector (GC-MSD) / Mohd Zudi Mohd Zahari

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