Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products

Detalhes bibliográficos
Autor(a) principal: Brandão, Geovani Cardoso
Data de Publicação: 2011
Outros Autores: Matos, Geraldo D., Ferreira, Sergio Luis Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5287
Resumo: Texto completo: Acesso Restrito.p. 231–233.
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spelling Brandão, Geovani CardosoMatos, Geraldo D.Ferreira, Sergio Luis CostaBrandão, Geovani CardosoMatos, Geraldo D.Ferreira, Sergio Luis Costa2012-02-01T15:45:03Z2011-070026-265Xhttp://www.repositorio.ufba.br/ri/handle/ri/5287v. 98, n. 2.Texto completo: Acesso Restrito.p. 231–233.The present paper proposes a simple and fast analytical procedure for the sequential multi-element determination of Ca and Mg in dairy products employing sampling slurry and high resolution-continuum source flame atomic absorption spectrometry (HR-CS FAAS). Considering the high concentration of these species in these matrices, the analytical measurements were carried out at the secondary lines of 239.856 and 202.852 for Ca and Mg, respectively. The experimental conditions established for the preparation of the slurries during the optimization step were: 2.0 mol L−1 hydrochloric acid, sonication time of 20 min and sample mass of 1.0 g for a slurry volume of 25 mL. Experiments demonstrated that the analytical curves can be established using the external calibration technique employing aqueous standards. The method allows the determination of Ca and Mg with limits of quantification of 0.038 and 0.016 mg g−1, respectively. The precision was evaluated under reproducibility and repeatability conditions and expressed as relative standard deviation. The results varied from 2.7 to 2.9% (all tests with n=10) and using a yogurt sample containing Ca and Mg concentrations of 1.40 and 0.13 mg g−1, respectively. The accuracy was confirmed by the analysis of a certified reference material of non-fat milk powder furnished by the National Institute of Standard and Technology. The proposed method was applied for the determination of Ca and Mg in yogurt, cow milk and milk powder samples. The samples were also analyzed after complete acid digestion and Ca and Mg determination by HR-CS FAAS. No statistical difference was observed between the results obtained by both of the procedures performed.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-02-01T15:45:03Z No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf: 91365 bytes, checksum: 968bf4b46b107db37294105021a75908 (MD5)Made available in DSpace on 2012-02-01T15:45:03Z (GMT). No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf: 91365 bytes, checksum: 968bf4b46b107db37294105021a75908 (MD5) Previous issue date: 2011-07http://dx.doi.org/10.1016/j.microc.2011.02.005reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASlurry samplingHigh-resolution continuum source flameHigh-resolution continuum source flame atomic absorption spectrometrySecondary linesCalciumMagnesiumDairy productsSlurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy productsMicrochemical journalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdfapplication/pdf91365https://repositorio.ufba.br/bitstream/ri/5287/1/__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf968bf4b46b107db37294105021a75908MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5287/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf.txt__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf.txtExtracted texttext/plain19668https://repositorio.ufba.br/bitstream/ri/5287/3/__pdn.sciencedirect.com_....0-S0026265X1100018X-main.pdf.txt720354d0a925a18a03da257f5a860579MD53ri/52872022-08-08 13:17:39.611oai:repositorio.ufba.br:ri/5287VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIHJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBCgogICAgUGVsbyBwcm9jZXNzbyBkZSBzdWJtaXNz77+9byBkZSBkb2N1bWVudG9zLCBvIGF1dG9yIG91IHNldQpyZXByZXNlbnRhbnRlIGxlZ2FsLCBhbyBhY2VpdGFyIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBjb25jZWRlIGFvClJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkYSBCYWhpYSBvIGRpcmVpdG8KZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCAKZGUgcHJlc2VydmHvv73vv71vLiBFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIAphdXRvci9jb3B5cmlnaHQsIG1hcyBlbnRlbmRlIG8gZG9jdW1lbnRvIGNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4gCgogICAgUGFyYSBvcyBkb2N1bWVudG9zIHB1YmxpY2Fkb3MgY29tIHJlcGFzc2UgZGUgZGlyZWl0b3MgZGUgZGlzdHJpYnVp77+977+9bywgZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEgZW50ZW5kZSBxdWU6IAoKICAgIE1hbnRlbmRvIG9zICBkaXJlaXRvcyBhdXRvcmFpcywgcmVwYXNzYWRvcyBhIHRlcmNlaXJvcywgZW0gY2FzbyAKZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8gcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIAppbnRlZ3JhbCwgbWFzIGxpYmVyYSBhcyBpbmZvcm1h77+977+9ZXMgc29icmUgbyBkb2N1bWVudG8gKE1ldGFkYWRvcyBkZXNjcml0aXZvcykuCgogRGVzdGEgZm9ybWEsIGF0ZW5kZW5kbyBhb3MgYW5zZWlvcyBkZXNzYSB1bml2ZXJzaWRhZGUgCmVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gYXMgcmVzdHJp77+977+9ZXMgaW1wb3N0YXMgcGVsb3MgCmVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4gCgogICAgUGFyYSBhcyBwdWJsaWNh77+977+9ZXMgZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgCkFjZXNzbyBBYmVydG8sIG9zIGRlcO+/vXNpdG9zIGNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gCm9zIGRpcmVpdG9zIGF1dG9yYWlzLCBtYXMgbWFudO+/vW0gbyBhY2Vzc28gaXJyZXN0cml0byBhbyBtZXRhZGFkb3MgCmUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIApjb25zZW50aW1lbnRvIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgCmVzdGFyZW0gZW0gaW5pY2lhdGl2YXMgZGUgYWNlc3NvIGFiZXJ0by4KCiAgICBFbSBhbWJvcyBvIGNhc28sIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBwb2RlIHNlciBhY2VpdG8gcGVsbyAKYXV0b3IsIGRldGVudG9yZXMgZGUgZGlyZWl0b3MgZS9vdSB0ZXJjZWlyb3MgYW1wYXJhZG9zIHBlbGEgCnVuaXZlcnNpZGFkZS4gRGV2aWRvIGFvcyBkaWZlcmVudGVzIHByb2Nlc3NvcyBwZWxvIHF1YWwgYSBzdWJtaXNz77+9byAKcG9kZSBvY29ycmVyLCBvIHJlcG9zaXTvv71yaW8gcGVybWl0ZSBhIGFjZWl0Ye+/ve+/vW8gZGEgbGljZW7vv71hIHBvciAKdGVyY2Vpcm9zLCBzb21lbnRlIG5vcyBjYXNvcyBkZSBkb2N1bWVudG9zIHByb2R1emlkb3MgcG9yIGludGVncmFudGVzIApkYSBVRkJBIGUgc3VibWV0aWRvcyBwb3IgcGVzc29hcyBhbXBhcmFkYXMgcG9yIGVzdGEgaW5zdGl0dWnvv73vv71vLgo=Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:39Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
dc.title.alternative.pt_BR.fl_str_mv Microchemical journal
title Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
spellingShingle Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
Brandão, Geovani Cardoso
Slurry sampling
High-resolution continuum source flame
High-resolution continuum source flame atomic absorption spectrometry
Secondary lines
Calcium
Magnesium
Dairy products
title_short Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
title_full Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
title_fullStr Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
title_full_unstemmed Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
title_sort Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy products
author Brandão, Geovani Cardoso
author_facet Brandão, Geovani Cardoso
Matos, Geraldo D.
Ferreira, Sergio Luis Costa
author_role author
author2 Matos, Geraldo D.
Ferreira, Sergio Luis Costa
author2_role author
author
dc.contributor.author.fl_str_mv Brandão, Geovani Cardoso
Matos, Geraldo D.
Ferreira, Sergio Luis Costa
Brandão, Geovani Cardoso
Matos, Geraldo D.
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Slurry sampling
High-resolution continuum source flame
High-resolution continuum source flame atomic absorption spectrometry
Secondary lines
Calcium
Magnesium
Dairy products
topic Slurry sampling
High-resolution continuum source flame
High-resolution continuum source flame atomic absorption spectrometry
Secondary lines
Calcium
Magnesium
Dairy products
description Texto completo: Acesso Restrito.p. 231–233.
publishDate 2011
dc.date.issued.fl_str_mv 2011-07
dc.date.accessioned.fl_str_mv 2012-02-01T15:45:03Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5287
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 98, n. 2.
identifier_str_mv 0026-265X
v. 98, n. 2.
url http://www.repositorio.ufba.br/ri/handle/ri/5287
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.2011.02.005
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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