Assessment of heavy metal contaminations in vegetables consume in Johor Bahru

Trace elements such as As, Pb, Hg, Cd, Fe, Ni, Cu, and Zn from organically and inorganically grown Brasssica (B.) were determined. In this study, X-ray fluorescence (XRF) technique was used for assessing concentration level of heavy metals (HMs) and its presence from all samples. All samples were ob...

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Main Author: Abdul Karim, Muhammad Khalis
Format: Thesis
Language:English
Published: 2014
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Online Access:http://eprints.utm.my/id/eprint/39755/1/MuhammadKhalisAbdulkarimMFS2014.pdf
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spelling my-utm-ep.397552017-09-06T00:17:17Z Assessment of heavy metal contaminations in vegetables consume in Johor Bahru 2014-01 Abdul Karim, Muhammad Khalis Q Science (General) Trace elements such as As, Pb, Hg, Cd, Fe, Ni, Cu, and Zn from organically and inorganically grown Brasssica (B.) were determined. In this study, X-ray fluorescence (XRF) technique was used for assessing concentration level of heavy metals (HMs) and its presence from all samples. All samples were obtained from 3 hypermarkets in Johor Bahru. These sampling techniques were known as “Market Basket Study”. Approximately, 1 kg of each vegetable was used and was analysed through standard laboratory procedures. The dried samples were grounded into powder form and by using test sieve mechanism, the size of the dried samples was found to be approximately 64 µm. The prepared samples in pellets form were analyzed using Wavelength Dispersive X-Ray Fluorescence (WDXRF) which compared to Standard Reference Material (SRM 1572) Citrus Leaves. The purpose is to detect the presence of trace elements such as As, Cd, Cu, Hg, Fe, Mn, Pb and Zn and their concentration level in vegetable samples. No significant different (p<0.05) of the HMs and mineral contents concentration between organic and inorganic Brassicas were observed except for Fe concentration from leaves. The concentration of HMs and trace elements in leaves is higher compare to stem, in the order of Fe > Zn > Mn > Cu > Pb > As > Hg > Cd. The HMs mean concentration of As, Hg, Pb and Cd in Brassicas samples were in the range of 1.94 – 2.55 ppm, 0.05 – 0.07 ppm, 8.33 – 10.91 ppm and 0.02 – 0.03 ppm, respectively. These values were exceeded the permissible level as stated in Food Act 1983 except for Cd, where As (1.00 ppm), Hg (0.05 ppm), Pb (2.00 ppm) and Cd (1.00 ppm). 2014-01 Thesis http://eprints.utm.my/id/eprint/39755/ http://eprints.utm.my/id/eprint/39755/1/MuhammadKhalisAbdulkarimMFS2014.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic Q Science (General)
spellingShingle Q Science (General)
Abdul Karim, Muhammad Khalis
Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
description Trace elements such as As, Pb, Hg, Cd, Fe, Ni, Cu, and Zn from organically and inorganically grown Brasssica (B.) were determined. In this study, X-ray fluorescence (XRF) technique was used for assessing concentration level of heavy metals (HMs) and its presence from all samples. All samples were obtained from 3 hypermarkets in Johor Bahru. These sampling techniques were known as “Market Basket Study”. Approximately, 1 kg of each vegetable was used and was analysed through standard laboratory procedures. The dried samples were grounded into powder form and by using test sieve mechanism, the size of the dried samples was found to be approximately 64 µm. The prepared samples in pellets form were analyzed using Wavelength Dispersive X-Ray Fluorescence (WDXRF) which compared to Standard Reference Material (SRM 1572) Citrus Leaves. The purpose is to detect the presence of trace elements such as As, Cd, Cu, Hg, Fe, Mn, Pb and Zn and their concentration level in vegetable samples. No significant different (p<0.05) of the HMs and mineral contents concentration between organic and inorganic Brassicas were observed except for Fe concentration from leaves. The concentration of HMs and trace elements in leaves is higher compare to stem, in the order of Fe > Zn > Mn > Cu > Pb > As > Hg > Cd. The HMs mean concentration of As, Hg, Pb and Cd in Brassicas samples were in the range of 1.94 – 2.55 ppm, 0.05 – 0.07 ppm, 8.33 – 10.91 ppm and 0.02 – 0.03 ppm, respectively. These values were exceeded the permissible level as stated in Food Act 1983 except for Cd, where As (1.00 ppm), Hg (0.05 ppm), Pb (2.00 ppm) and Cd (1.00 ppm).
format Thesis
qualification_level Master's degree
author Abdul Karim, Muhammad Khalis
author_facet Abdul Karim, Muhammad Khalis
author_sort Abdul Karim, Muhammad Khalis
title Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
title_short Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
title_full Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
title_fullStr Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
title_full_unstemmed Assessment of heavy metal contaminations in vegetables consume in Johor Bahru
title_sort assessment of heavy metal contaminations in vegetables consume in johor bahru
granting_institution Universiti Teknologi Malaysia, Faculty of Science
granting_department Faculty of Science
publishDate 2014
url http://eprints.utm.my/id/eprint/39755/1/MuhammadKhalisAbdulkarimMFS2014.pdf
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