Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar

Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar

The pesticides selected for this study are chlorpyrifos, diazinon, heptachlor and lindane. A random method of sampling for soil and water samples was adopted at a selected paddy field at Sekinchan, Selangor by using a soil probe for soil samples and a grab sampler for water samples. The soil and wat...

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Main Author: Abu Bakar, Nur - Ain
Format: Student Project
Language:English
Published: Faculty of Applied Sciences 2009
Subjects:
Chemicals
Online Access:http://ir.uitm.edu.my/id/eprint/23174/
http://ir.uitm.edu.my/id/eprint/23174/1/PPb_NUR-AIN%20ABU%20BAKAR%20AS%2009_5.pdf
id uitm-23174
recordtype eprints
spelling uitm-231742019-02-14T07:12:17Z http://ir.uitm.edu.my/id/eprint/23174/ Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar Abu Bakar, Nur - Ain Chemicals The pesticides selected for this study are chlorpyrifos, diazinon, heptachlor and lindane. A random method of sampling for soil and water samples was adopted at a selected paddy field at Sekinchan, Selangor by using a soil probe for soil samples and a grab sampler for water samples. The soil and water samples were homogenized using methanol and then eluted by n-hexane in solid phase extraction. The samples were subsequently analysed by GC-ECD. From the results only chlorpyrifos was detected, namely 0.5358ng/ul in soil samples and 0.9482 ng/ul in water samples. The percent recovery in soil samples is 89.51% and 72.18% in water samples. Other selected pesticides were not detected in the soil and water samples. To determine the residual pesticides from the paddy field plot to the water canal and then to Sg.Selangor, five samples of water were collected at different locations. It is observed that chlorpyrifos disappeared gradually toward Sg.Selangor. The final concentration of chlorpyrifos in the Sg. Selangor is 0.0507ng/ul, which is under the allowable limit of 0.08ng/ul by the Interim Natural Water Quality Standard for Malaysia. Faculty of Applied Sciences 2009 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23174/1/PPb_NUR-AIN%20ABU%20BAKAR%20AS%2009_5.pdf Abu Bakar, Nur - Ain (2009) Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar. [Student Project] (Unpublished)
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
topic Chemicals
spellingShingle Chemicals
Abu Bakar, Nur - Ain
Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
description The pesticides selected for this study are chlorpyrifos, diazinon, heptachlor and lindane. A random method of sampling for soil and water samples was adopted at a selected paddy field at Sekinchan, Selangor by using a soil probe for soil samples and a grab sampler for water samples. The soil and water samples were homogenized using methanol and then eluted by n-hexane in solid phase extraction. The samples were subsequently analysed by GC-ECD. From the results only chlorpyrifos was detected, namely 0.5358ng/ul in soil samples and 0.9482 ng/ul in water samples. The percent recovery in soil samples is 89.51% and 72.18% in water samples. Other selected pesticides were not detected in the soil and water samples. To determine the residual pesticides from the paddy field plot to the water canal and then to Sg.Selangor, five samples of water were collected at different locations. It is observed that chlorpyrifos disappeared gradually toward Sg.Selangor. The final concentration of chlorpyrifos in the Sg. Selangor is 0.0507ng/ul, which is under the allowable limit of 0.08ng/ul by the Interim Natural Water Quality Standard for Malaysia.
format Student Project
author Abu Bakar, Nur - Ain
author_facet Abu Bakar, Nur - Ain
author_sort Abu Bakar, Nur - Ain
title Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
title_short Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
title_full Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
title_fullStr Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
title_full_unstemmed Determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at Sekinchan, Selangor / Nur - Ain Abu Bakar
title_sort determination of organochlorine and organophosphate pesticides in the soil and water of a paddy field at sekinchan, selangor / nur - ain abu bakar
publisher Faculty of Applied Sciences
publishDate 2009
url http://ir.uitm.edu.my/id/eprint/23174/
http://ir.uitm.edu.my/id/eprint/23174/1/PPb_NUR-AIN%20ABU%20BAKAR%20AS%2009_5.pdf
first_indexed 2023-09-18T23:10:14Z
last_indexed 2023-09-18T23:10:14Z
_version_ 1777418752810287104

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