<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>

A method that involves analysis of bovine liver by slurry nebulization and ICP-OES has been developed. This method permits rapid and accurate determination of Cu, Fe, Mg, Mn and Zn in bovine liver. Aliquots of freeze-dried and powdered bovine liver sample were dispersed in 2.0 M HNO<sub>3</...

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Main Authors: Ntebogeng S. Mokgalaka, Taddese Wondimu, Robert I. McCrindle
Format: Article
Language:English
Published: Chemical Society of Ethiopia 2008-12-01
Series:Bulletin of the Chemical Society of Ethiopia
Subjects:
Online Access:http://www.ajol.info/index.php/bcse/article/view/61195
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author Ntebogeng S. Mokgalaka
Taddese Wondimu
Robert I. McCrindle
author_facet Ntebogeng S. Mokgalaka
Taddese Wondimu
Robert I. McCrindle
author_sort Ntebogeng S. Mokgalaka
collection DOAJ
description A method that involves analysis of bovine liver by slurry nebulization and ICP-OES has been developed. This method permits rapid and accurate determination of Cu, Fe, Mg, Mn and Zn in bovine liver. Aliquots of freeze-dried and powdered bovine liver sample were dispersed in 2.0 M HNO<sub>3</sub> and sonicated to homogenize the resulting slurries. Bovine liver samples were also microwave digested or subjected to aqueous extraction for comparison of analytical results. Concentrations of Cu, Fe, Mg, Mn and Zn in aqueous slurries, the digests, and aqueous extracts were determined by the ICP-OES using external calibration curves. A student’s <i>t</i>-test showed that the results obtained using the slurry method were in good agreement at 95 % confidence level (CL) with those of microwave digestion or aqueous extraction techniques, except for Fe. To check the accuracy and precision of the slurry method, a bovine liver CRM was analyzed and good agreement was achieved with the certified values at 95 % CL. The results demonstrate inefficiency of aqueous extraction technique for complete removal of Fe in bovine liver sample.
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spelling doaj.art-8a69821b6c7a410780b76887b4c6ca2d2022-12-22T00:49:41ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2008-12-01223313321<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>Ntebogeng S. MokgalakaTaddese WondimuRobert I. McCrindleA method that involves analysis of bovine liver by slurry nebulization and ICP-OES has been developed. This method permits rapid and accurate determination of Cu, Fe, Mg, Mn and Zn in bovine liver. Aliquots of freeze-dried and powdered bovine liver sample were dispersed in 2.0 M HNO<sub>3</sub> and sonicated to homogenize the resulting slurries. Bovine liver samples were also microwave digested or subjected to aqueous extraction for comparison of analytical results. Concentrations of Cu, Fe, Mg, Mn and Zn in aqueous slurries, the digests, and aqueous extracts were determined by the ICP-OES using external calibration curves. A student’s <i>t</i>-test showed that the results obtained using the slurry method were in good agreement at 95 % confidence level (CL) with those of microwave digestion or aqueous extraction techniques, except for Fe. To check the accuracy and precision of the slurry method, a bovine liver CRM was analyzed and good agreement was achieved with the certified values at 95 % CL. The results demonstrate inefficiency of aqueous extraction technique for complete removal of Fe in bovine liver sample.http://www.ajol.info/index.php/bcse/article/view/61195Bovine liverICP-OESSlurry nebulizationCuFeMgMnZn
spellingShingle Ntebogeng S. Mokgalaka
Taddese Wondimu
Robert I. McCrindle
<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
Bulletin of the Chemical Society of Ethiopia
Bovine liver
ICP-OES
Slurry nebulization
Cu
Fe
Mg
Mn
Zn
title <b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
title_full <b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
title_fullStr <b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
title_full_unstemmed <b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
title_short <b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn in bovine liver</b>
title_sort b slurry nebulization icp oes for the determination of cu fe mg mn and zn in bovine liver b
topic Bovine liver
ICP-OES
Slurry nebulization
Cu
Fe
Mg
Mn
Zn
url http://www.ajol.info/index.php/bcse/article/view/61195
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