Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis

Bibliographic Details
Main Author: Santos, Wagna Piler Carvalho dos
Publication Date: 2008
Other Authors: Hatje, Vanessa, Lima, Leonardo Nascimento, Trignano, Stefano Valente, Barros Junior, Francisco Carlos Rocha de, Castro, Jacira Teixeira, Korn, Maria das Graças Andrade
Format: Article
Language: eng
Source: Repositório Institucional da UFBA
Download full: http://www.repositorio.ufba.br/ri/handle/ri/6086
Summary: Acesso restrito: Texto completo. p. 123-130
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spelling Santos, Wagna Piler Carvalho dosHatje, VanessaLima, Leonardo NascimentoTrignano, Stefano ValenteBarros Junior, Francisco Carlos Rocha deCastro, Jacira TeixeiraKorn, Maria das Graças AndradeSantos, Wagna Piler Carvalho dosHatje, VanessaLima, Leonardo NascimentoTrignano, Stefano ValenteBarros Junior, Francisco Carlos Rocha deCastro, Jacira TeixeiraKorn, Maria das Graças Andrade2012-06-06T18:20:56Z20080026-265Xhttp://www.repositorio.ufba.br/ri/handle/ri/6086v. 89, v. 2Acesso restrito: Texto completo. p. 123-130Elemental analyses of food samples require several pre-treatment steps that constitute a great potential source of errors. In this study, the influence of cryogenic, ball and knife mill devices and also sieving using different sizes of sieve (100, 300 and 500 μm) was evaluated for samples of bivalves, coffee and cowpea beans. A two-factor ANOVAwas performed in each sample to test for differences between macro, micro and trace element concentrations determined by ICP OES. Results showed that the efficiency of the particle size reduction and sample homogeneity depends on the milling device and the nature of samples. Food samples may present segregation after comminution, and sieving might become a necessary step. Nevertheless, the sieve aperture has to be chosen cautiously, once it might influence the final element concentration. Overall, the expected results by employing cryogenic grinding, such as rapid sample homogenization and small particle size generated were also observed for ball mill. Contamination can be a critical issue for some elements and need to be evaluated individually.© 2008 Elsevier B.V. All rights reserved.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-06T18:20:56Z No. of bitstreams: 1 __ac.els-cdn.com_S002626...441944a7c11a530136a4f93c3fb48.pdf: 611503 bytes, checksum: 1c514a08b427cf9a390acbd13c36e897 (MD5)Made available in DSpace on 2012-06-06T18:20:56Z (GMT). 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dc.title.pt_BR.fl_str_mv Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
dc.title.alternative.pt_BR.fl_str_mv Microchemical Journal
title Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
spellingShingle Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
Santos, Wagna Piler Carvalho dos
Sample preparation
Grinding
Sieving
Food samples
Multi-element analysis
title_short Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
title_full Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
title_fullStr Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
title_full_unstemmed Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
title_sort Evaluation of sample preparation (grinding and sieving) of bivalves, coffee and cowpea beans for multi-element analysis
author Santos, Wagna Piler Carvalho dos
author_facet Santos, Wagna Piler Carvalho dos
Hatje, Vanessa
Lima, Leonardo Nascimento
Trignano, Stefano Valente
Barros Junior, Francisco Carlos Rocha de
Castro, Jacira Teixeira
Korn, Maria das Graças Andrade
author_role author
author2 Hatje, Vanessa
Lima, Leonardo Nascimento
Trignano, Stefano Valente
Barros Junior, Francisco Carlos Rocha de
Castro, Jacira Teixeira
Korn, Maria das Graças Andrade
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, Wagna Piler Carvalho dos
Hatje, Vanessa
Lima, Leonardo Nascimento
Trignano, Stefano Valente
Barros Junior, Francisco Carlos Rocha de
Castro, Jacira Teixeira
Korn, Maria das Graças Andrade
Santos, Wagna Piler Carvalho dos
Hatje, Vanessa
Lima, Leonardo Nascimento
Trignano, Stefano Valente
Barros Junior, Francisco Carlos Rocha de
Castro, Jacira Teixeira
Korn, Maria das Graças Andrade
dc.subject.por.fl_str_mv Sample preparation
Grinding
Sieving
Food samples
Multi-element analysis
topic Sample preparation
Grinding
Sieving
Food samples
Multi-element analysis
description Acesso restrito: Texto completo. p. 123-130
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-06-06T18:20:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6086
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 89, v. 2
identifier_str_mv 0026-265X
v. 89, v. 2
url http://www.repositorio.ufba.br/ri/handle/ri/6086
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.microc.2008.01.003
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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