Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar

Slimming tea is one of the many popular Asia herbal products. The presence of heavy metals in the slimming tea has received special attention because they are directly related to health. Six slimming teas from different brands and countries which were two slimming tea products from local, two...

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Main Author:	Abu Bakar, Erina Asmawani
Format:	Thesis
Language:	English
Published:	Faculty of Applied Sciences 2008
Subjects:	QD Chemistry
Online Access:	http://ir.uitm.edu.my/id/eprint/822/ http://ir.uitm.edu.my/id/eprint/822/1/TD_ERINA%20ASMAWANI%20ABU%20BAKAR%2008_5%201.pdf

id	uitm-822
recordtype	eprints
spelling	uitm-8222016-06-08T03:42:43Z http://ir.uitm.edu.my/id/eprint/822/ Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar Abu Bakar, Erina Asmawani QD Chemistry Slimming tea is one of the many popular Asia herbal products. The presence of heavy metals in the slimming tea has received special attention because they are directly related to health. Six slimming teas from different brands and countries which were two slimming tea products from local, two from Indonesia and another two from China were used in this project. All samples were treated using acid digestion method and concentration of Cd, Cr, Cu, Pb and Ni were determined by using Atomic Absorption Spectroscopy. The result of analysis showed that the content of Cr in all slimming tea samples ranged between 4.900 and 31.350 mg/kg which the lowest content found in sample (X), a product from Malaysia and highest content of Cr was found in sample (3) which was product from China respectively. The levels of Cd in the slimming tea samples were between 2.500 and 3.850 mg/kg which the lowest level of Cd was found in sample (X) which product from Malaysia and highest from sample (Z) which is China product. The Cd value in all samples was higher than maximum permitted proportion of metal contaminants in specified food Malaysia, 1985 (regulation 38) which is 1.0 mg/kg. Analysis of Cu content in slimming tea samples indicated that the mean value of copper ranged between 2.150 and 18.600 mg/kg. The lowest value of Cu was found in sample (2) and the highest in sample (Y) and both of samples were from Indonesia. Ni in the slimming tea sample was in the range of 1.100 to 11.850 mg/kg. The lowest Ni content was found in sample (2) which product from Indonesia and highest in sample (Z) which is China product. For the Pb analysis, the absorbance measurements for all samples were too low which means that the Pb concentrations were non detectable. Faculty of Applied Sciences 2008 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/822/1/TD_ERINA%20ASMAWANI%20ABU%20BAKAR%2008_5%201.pdf Abu Bakar, Erina Asmawani (2008) Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar. Degree thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Abu Bakar, Erina Asmawani Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
description	Slimming tea is one of the many popular Asia herbal products. The presence of heavy metals in the slimming tea has received special attention because they are directly related to health. Six slimming teas from different brands and countries which were two slimming tea products from local, two from Indonesia and another two from China were used in this project. All samples were treated using acid digestion method and concentration of Cd, Cr, Cu, Pb and Ni were determined by using Atomic Absorption Spectroscopy. The result of analysis showed that the content of Cr in all slimming tea samples ranged between 4.900 and 31.350 mg/kg which the lowest content found in sample (X), a product from Malaysia and highest content of Cr was found in sample (3) which was product from China respectively. The levels of Cd in the slimming tea samples were between 2.500 and 3.850 mg/kg which the lowest level of Cd was found in sample (X) which product from Malaysia and highest from sample (Z) which is China product. The Cd value in all samples was higher than maximum permitted proportion of metal contaminants in specified food Malaysia, 1985 (regulation 38) which is 1.0 mg/kg. Analysis of Cu content in slimming tea samples indicated that the mean value of copper ranged between 2.150 and 18.600 mg/kg. The lowest value of Cu was found in sample (2) and the highest in sample (Y) and both of samples were from Indonesia. Ni in the slimming tea sample was in the range of 1.100 to 11.850 mg/kg. The lowest Ni content was found in sample (2) which product from Indonesia and highest in sample (Z) which is China product. For the Pb analysis, the absorbance measurements for all samples were too low which means that the Pb concentrations were non detectable.
format	Thesis
author	Abu Bakar, Erina Asmawani
author_facet	Abu Bakar, Erina Asmawani
author_sort	Abu Bakar, Erina Asmawani
title	Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
title_short	Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
title_full	Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
title_fullStr	Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
title_full_unstemmed	Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar
title_sort	determination of heavy metals (cadmium, chromium, copper, lead and nickel) in slimming teas by using atomic absorption spectroscopy / erina asmawani abu bakar
publisher	Faculty of Applied Sciences
publishDate	2008
url	http://ir.uitm.edu.my/id/eprint/822/ http://ir.uitm.edu.my/id/eprint/822/1/TD_ERINA%20ASMAWANI%20ABU%20BAKAR%2008_5%201.pdf
first_indexed	2023-09-18T22:45:03Z
last_indexed	2023-09-18T22:45:03Z
_version_	1777417168809361408

Determination of heavy metals (Cadmium, Chromium, Copper, Lead and Nickel) in slimming teas by using atomic absorption spectroscopy / Erina Asmawani Abu Bakar

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