Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design

Detalhes bibliográficos
Autor(a) principal: Macedo, Samuel Marques
Data de Publicação: 2009
Outros Autores: Jesus, Raildo M. de, Garcia, Karina S., Hatje, Vanessa, Queiroz, Antônio Fernando de Souza, 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/6124
Resumo: Trabalho completo: acesso restrito, p. 974–979
id UFBA-2_8584d00f6f5c48c5d8f093ebea70ae64
oai_identifier_str oai:repositorio.ufba.br:ri/6124
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Macedo, Samuel MarquesJesus, Raildo M. deGarcia, Karina S.Hatje, VanessaQueiroz, Antônio Fernando de SouzaFerreira, Sergio Luis CostaMacedo, Samuel MarquesJesus, Raildo M. deGarcia, Karina S.Hatje, VanessaQueiroz, Antônio Fernando de SouzaFerreira, Sergio Luis Costa2012-06-13T19:44:58Z20090039-9140http://www.repositorio.ufba.br/ri/handle/ri/6124v. 80, n. 2Trabalho completo: acesso restrito, p. 974–979In the present paper, a procedure for the determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by slurry sampling (SS) with hydride generation atomic absorption spectrometry (HG-AAS) is proposed. Arsenic (III) is determinated directly and total arsenic is determinated after reduction reaction. The procedure was optimized for the flow rate of NaBH4, NaBH4 and hydrochloric acid concentrations using a full two-level factorial and also a Box-Behnken design. Slurry preparation with hydrochloric acid in an ultrasonic bath allowed the determination of arsenic (III) with limits of detection and quantification of 0.1 and 0.3 μg L−1, respectively. The precision of results, expressed as relative standard deviation (RSD), was always lower than 3%. The accuracy of this method was confirmed by analysis of certified sediment reference materials, while the procedure also allows for calibration using aqueous external standards. This method (SS/HG-AAS) was used to determine total arsenic and arsenic (III) in two phosphate rock samples and two phosphate fertilizer samples. In these samples, total arsenic concentrations varied from 5.2 to 20.0 mg kg−1, while As (III) concentrations varied from 2.1 to 5.5 mg kg−1, in agreement with published values. All samples were also analyzed using acid digestion/HG-AAS. Both, a paired t-test and a linear regression model demonstrated no significant difference (95% CL) between the results obtained using these two sample preparation procedures.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-06-13T19:44:58Z No. of bitstreams: 1 (66)1-s2.0-S0039914009006766-main.pdf: 351909 bytes, checksum: e6de0c39fa4002b8e7b5a4b79feda1a7 (MD5)Made available in DSpace on 2012-06-13T19:44:58Z (GMT). No. of bitstreams: 1 (66)1-s2.0-S0039914009006766-main.pdf: 351909 bytes, checksum: e6de0c39fa4002b8e7b5a4b79feda1a7 (MD5) Previous issue date: 2009-12-15Elsevierhttp://dx.doi.org/10.1016/j.talanta.2009.08.025reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAMultivariate optimizationSlurry samplingPhosphate rocksPhosphate fertilizersArsenicHydride generationAtomic absorption spectrometryDetermination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken designTalantainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL(66)1-s2.0-S0039914009006766-main.pdf(66)1-s2.0-S0039914009006766-main.pdfapplication/pdf351909https://repositorio.ufba.br/bitstream/ri/6124/1/%2866%291-s2.0-S0039914009006766-main.pdfe6de0c39fa4002b8e7b5a4b79feda1a7MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6124/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(66)1-s2.0-S0039914009006766-main.pdf.txt(66)1-s2.0-S0039914009006766-main.pdf.txtExtracted texttext/plain27745https://repositorio.ufba.br/bitstream/ri/6124/3/%2866%291-s2.0-S0039914009006766-main.pdf.txt76b34e0f17e021ea31d7e75f0ee66187MD53ri/61242022-10-17 23:37:21.014oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-10-18T02:37:21Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
spellingShingle Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
Macedo, Samuel Marques
Multivariate optimization
Slurry sampling
Phosphate rocks
Phosphate fertilizers
Arsenic
Hydride generation
Atomic absorption spectrometry
title_short Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
title_full Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
title_fullStr Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
title_full_unstemmed Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
title_sort Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
author Macedo, Samuel Marques
author_facet Macedo, Samuel Marques
Jesus, Raildo M. de
Garcia, Karina S.
Hatje, Vanessa
Queiroz, Antônio Fernando de Souza
Ferreira, Sergio Luis Costa
author_role author
author2 Jesus, Raildo M. de
Garcia, Karina S.
Hatje, Vanessa
Queiroz, Antônio Fernando de Souza
Ferreira, Sergio Luis Costa
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Macedo, Samuel Marques
Jesus, Raildo M. de
Garcia, Karina S.
Hatje, Vanessa
Queiroz, Antônio Fernando de Souza
Ferreira, Sergio Luis Costa
Macedo, Samuel Marques
Jesus, Raildo M. de
Garcia, Karina S.
Hatje, Vanessa
Queiroz, Antônio Fernando de Souza
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Multivariate optimization
Slurry sampling
Phosphate rocks
Phosphate fertilizers
Arsenic
Hydride generation
Atomic absorption spectrometry
topic Multivariate optimization
Slurry sampling
Phosphate rocks
Phosphate fertilizers
Arsenic
Hydride generation
Atomic absorption spectrometry
description Trabalho completo: acesso restrito, p. 974–979
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2012-06-13T19:44:58Z
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/6124
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 80, n. 2
identifier_str_mv 0039-9140
v. 80, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/6124
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.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.talanta.2009.08.025
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
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/6124/1/%2866%291-s2.0-S0039914009006766-main.pdf
https://repositorio.ufba.br/bitstream/ri/6124/2/license.txt
https://repositorio.ufba.br/bitstream/ri/6124/3/%2866%291-s2.0-S0039914009006766-main.pdf.txt
bitstream.checksum.fl_str_mv e6de0c39fa4002b8e7b5a4b79feda1a7
1b89a9a0548218172d7c829f87a0eab9
76b34e0f17e021ea31d7e75f0ee66187
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1808459401200140288

Registros relacionados