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Voltammetry determination of selenium in various milk samples

The interest concerning against selenium (Se) has been considerable arise in recent years as Se is an essential trace element for humans and it also exhibit toxicity effect in humans depending on its concentration. In this study, determination of the concentration of Se in various milk samples ha...

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Main Author: Lian, Oo Kee
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2015
Subjects:
R Medicine (General)
R735-854 Medical education. Medical schools. Research
Online Access:http://eprints.usm.my/60440/1/OO%20KEE%20LIAN%20-%20e.pdf
http://eprints.usm.my/60440/
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spelling my.usm.eprints.60440 http://eprints.usm.my/60440/ Voltammetry determination of selenium in various milk samples Lian, Oo Kee R Medicine (General) R735-854 Medical education. Medical schools. Research The interest concerning against selenium (Se) has been considerable arise in recent years as Se is an essential trace element for humans and it also exhibit toxicity effect in humans depending on its concentration. In this study, determination of the concentration of Se in various milk samples had been carried out using differential pulse cathodic stripping voltammetry (DPCSV) technique. This study provides a methodology that can be used to determine the concentration of selenium in various milk samples. Three types of raw fresh milks (goat’s milk, cow’s milk, and horse’s milk) and seven types of processed commercial milks had been analysed using DPCSV technique. These milk samples were undergone sample preparation procedure before being analysis. The milk samples were digested in HN03 : HCIO4 ( 1:1 ) mixture by a wet digestion procedure. All forms of Se in milk samples were converted into Se(IV) by the addition of HC1. The prepared samples were undergone dilution before proceed to analysis. The diluted milk samples were then added with electrolyte constitutes of 3.3g ammonium sulphate, O.lmol/L NaiEDTA dehydrate, and 100 ppm Cu standard solution before the analysis starts. The DPCSV of milk samples in HC1 solution showed a peak potential for selenium at -0.65V. The standard addition method was used to determine Se in the samples. The result for Se concentration in milk samples were successfully obtained in this study. Universiti Sains Malaysia 2015 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/60440/1/OO%20KEE%20LIAN%20-%20e.pdf Lian, Oo Kee (2015) Voltammetry determination of selenium in various milk samples. Project Report. Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic R Medicine (General)
R735-854 Medical education. Medical schools. Research
spellingShingle R Medicine (General)
R735-854 Medical education. Medical schools. Research
Lian, Oo Kee
Voltammetry determination of selenium in various milk samples
description The interest concerning against selenium (Se) has been considerable arise in recent years as Se is an essential trace element for humans and it also exhibit toxicity effect in humans depending on its concentration. In this study, determination of the concentration of Se in various milk samples had been carried out using differential pulse cathodic stripping voltammetry (DPCSV) technique. This study provides a methodology that can be used to determine the concentration of selenium in various milk samples. Three types of raw fresh milks (goat’s milk, cow’s milk, and horse’s milk) and seven types of processed commercial milks had been analysed using DPCSV technique. These milk samples were undergone sample preparation procedure before being analysis. The milk samples were digested in HN03 : HCIO4 ( 1:1 ) mixture by a wet digestion procedure. All forms of Se in milk samples were converted into Se(IV) by the addition of HC1. The prepared samples were undergone dilution before proceed to analysis. The diluted milk samples were then added with electrolyte constitutes of 3.3g ammonium sulphate, O.lmol/L NaiEDTA dehydrate, and 100 ppm Cu standard solution before the analysis starts. The DPCSV of milk samples in HC1 solution showed a peak potential for selenium at -0.65V. The standard addition method was used to determine Se in the samples. The result for Se concentration in milk samples were successfully obtained in this study.
format Monograph
author Lian, Oo Kee
author_facet Lian, Oo Kee
author_sort Lian, Oo Kee
title Voltammetry determination of selenium in various milk samples
title_short Voltammetry determination of selenium in various milk samples
title_full Voltammetry determination of selenium in various milk samples
title_fullStr Voltammetry determination of selenium in various milk samples
title_full_unstemmed Voltammetry determination of selenium in various milk samples
title_sort voltammetry determination of selenium in various milk samples
publisher Universiti Sains Malaysia
publishDate 2015
url http://eprints.usm.my/60440/1/OO%20KEE%20LIAN%20-%20e.pdf
http://eprints.usm.my/60440/
_version_ 1800086031185215488
score 13.211869

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