Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood

Direct solid sample analysis with graphite furnace atomic absorption spectrometry (SS-GF AAS) was investigated initially with the intention of developing a method for the determination of total As in fish and other seafood. A mixture of 0.1% Pd + 0.06% Mg + 0.06% Triton X-100 was used as the chemica...

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Detalhes bibliográficos
Autores: Zmozinski, Ariane V., Llorente Mirandes, Antoni, Damin, Isabel C. F., López Sánchez, José Fermín, Vale, Maria G.R., Welz, Bernhard, Da Silva, M. M.
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/162399
Acesso em linha:https://hdl.handle.net/2445/162399
Access Level:acceso abierto
Palavra-chave:Arsènic
Marisc
Grafit
Química dels aliments
Arsenic
Seafood
Graphite
Food composition
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spelling Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafoodZmozinski, Ariane V.Llorente Mirandes, AntoniDamin, Isabel C. F.López Sánchez, José FermínVale, Maria G.R.Welz, BernhardDa Silva, M. M.ArsènicMariscGrafitQuímica dels alimentsArsenicSeafoodGraphiteFood compositionDirect solid sample analysis with graphite furnace atomic absorption spectrometry (SS-GF AAS) was investigated initially with the intention of developing a method for the determination of total As in fish and other seafood. A mixture of 0.1% Pd + 0.06% Mg + 0.06% Triton X-100 was used as the chemical modifier, added in solution over the solid samples, making possible the use of pyrolysis and atomization temperatures of 1200 °C and 2400 °C, respectively. The sample mass had to be limited to 0.25 mg, as the integrated absorbance did not increase further with increasing sample mass. Nevertheless, the recovery of As from several certified reference materials was of the order of 50% lower than the certified value. Strong molecular absorption due to the phosphorus monoxide molecule (PO) was observed with high-resolution continuum source AAS (HR CS AAS), which, however, did not cause any spectral interference. A microwave-assisted digestion with HNO3/H2O2 was also investigated to solve the problem; however, the results obtained for several certified reference materials were statistically not different from those found with direct SS-GF AAS. Accurate values were obtained using inductively coupled plasma mass spectrometry (ICPMS) to analyze the digested samples, which suggested that organic As compounds are responsible for the low recoveries. HPLC-ICP-MS was used to determine the arsenobetaine (AB) concentration. Accurate results that were not different from the certified values were obtained when the AB concentration was added to the As concentration found by SS-GF AAS for most certified reference materials (CRM) and samples, suggesting that SS-GF AAS could be used as a fast screening procedure for inorganic As determination in fish and seafood.Elsevier B.V.2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/162399Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2014.11.009Talanta, 2014, vol. 134, p. 224-231https://doi.org/10.1016/j.talanta.2014.11.009(c) Elsevier B.V., 2014info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1623992026-05-27T06:46:51Z
dc.title.none.fl_str_mv Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
title Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
spellingShingle Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
Zmozinski, Ariane V.
Arsènic
Marisc
Grafit
Química dels aliments
Arsenic
Seafood
Graphite
Food composition
title_short Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
title_full Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
title_fullStr Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
title_full_unstemmed Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
title_sort Direct solid sample analysis with graphite furnace atomic absorption spectrometry -A fast and reliable screening procedure for the determination of inorganic arsenic in fish and seafood
dc.creator.none.fl_str_mv Zmozinski, Ariane V.
Llorente Mirandes, Antoni
Damin, Isabel C. F.
López Sánchez, José Fermín
Vale, Maria G.R.
Welz, Bernhard
Da Silva, M. M.
author Zmozinski, Ariane V.
author_facet Zmozinski, Ariane V.
Llorente Mirandes, Antoni
Damin, Isabel C. F.
López Sánchez, José Fermín
Vale, Maria G.R.
Welz, Bernhard
Da Silva, M. M.
author_role author
author2 Llorente Mirandes, Antoni
Damin, Isabel C. F.
López Sánchez, José Fermín
Vale, Maria G.R.
Welz, Bernhard
Da Silva, M. M.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Arsènic
Marisc
Grafit
Química dels aliments
Arsenic
Seafood
Graphite
Food composition
topic Arsènic
Marisc
Grafit
Química dels aliments
Arsenic
Seafood
Graphite
Food composition
description Direct solid sample analysis with graphite furnace atomic absorption spectrometry (SS-GF AAS) was investigated initially with the intention of developing a method for the determination of total As in fish and other seafood. A mixture of 0.1% Pd + 0.06% Mg + 0.06% Triton X-100 was used as the chemical modifier, added in solution over the solid samples, making possible the use of pyrolysis and atomization temperatures of 1200 °C and 2400 °C, respectively. The sample mass had to be limited to 0.25 mg, as the integrated absorbance did not increase further with increasing sample mass. Nevertheless, the recovery of As from several certified reference materials was of the order of 50% lower than the certified value. Strong molecular absorption due to the phosphorus monoxide molecule (PO) was observed with high-resolution continuum source AAS (HR CS AAS), which, however, did not cause any spectral interference. A microwave-assisted digestion with HNO3/H2O2 was also investigated to solve the problem; however, the results obtained for several certified reference materials were statistically not different from those found with direct SS-GF AAS. Accurate values were obtained using inductively coupled plasma mass spectrometry (ICPMS) to analyze the digested samples, which suggested that organic As compounds are responsible for the low recoveries. HPLC-ICP-MS was used to determine the arsenobetaine (AB) concentration. Accurate results that were not different from the certified values were obtained when the AB concentration was added to the As concentration found by SS-GF AAS for most certified reference materials (CRM) and samples, suggesting that SS-GF AAS could be used as a fast screening procedure for inorganic As determination in fish and seafood.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/162399
url https://hdl.handle.net/2445/162399
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.talanta.2014.11.009
Talanta, 2014, vol. 134, p. 224-231
https://doi.org/10.1016/j.talanta.2014.11.009
dc.rights.none.fl_str_mv (c) Elsevier B.V., 2014
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier B.V., 2014
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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