Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000801008 |
Resumo: | A sensitive method is proposed to determine antimony species using vortex-assisted ionic liquid-based liquid-phase microextraction and digital imaging colorimetry. SbIII forms a ternary complex with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol, ascorbic acid, and iodide in an acid medium. The acceptor phase consists of the ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate, dispersed in the aqueous solution with a vortex stirrer. After centrifugation, SbIII was determined directly in the rich phase. SbV can also be measured by converting to reduced species. The method presented a limit of detection of 1.4 and 4.2 μg L-1 and an enrichment factor of 360. The precision (relative standard deviation) of the method is 7.0%. The procedure was applied to the speciation of antimony in river water and mineral water samples. Some results were compared with those obtained by electrothermal atomic absorption spectrometry (ET AAS). The method is an attractive alternative for determining antimony species, considering the aspects of green analytical chemistry. |
id |
SBQ-2_2594cc62c9af3c8bb187a6cd57d71fd5 |
---|---|
oai_identifier_str |
oai:scielo:S0103-50532022000801008 |
network_acronym_str |
SBQ-2 |
network_name_str |
Journal of the Brazilian Chemical Society (Online) |
repository_id_str |
|
spelling |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Waterliquid phase extractionantimonydigital image colorimetryspeciationA sensitive method is proposed to determine antimony species using vortex-assisted ionic liquid-based liquid-phase microextraction and digital imaging colorimetry. SbIII forms a ternary complex with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol, ascorbic acid, and iodide in an acid medium. The acceptor phase consists of the ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate, dispersed in the aqueous solution with a vortex stirrer. After centrifugation, SbIII was determined directly in the rich phase. SbV can also be measured by converting to reduced species. The method presented a limit of detection of 1.4 and 4.2 μg L-1 and an enrichment factor of 360. The precision (relative standard deviation) of the method is 7.0%. The procedure was applied to the speciation of antimony in river water and mineral water samples. Some results were compared with those obtained by electrothermal atomic absorption spectrometry (ET AAS). The method is an attractive alternative for determining antimony species, considering the aspects of green analytical chemistry.Sociedade Brasileira de Química2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000801008Journal of the Brazilian Chemical Society v.33 n.8 2022reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20220075info:eu-repo/semantics/openAccessSantos,Luana B.Lemos,Valfredo A.eng2022-06-10T00:00:00Zoai:scielo:S0103-50532022000801008Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2022-06-10T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
title |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
spellingShingle |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water Santos,Luana B. liquid phase extraction antimony digital image colorimetry speciation |
title_short |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
title_full |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
title_fullStr |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
title_full_unstemmed |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
title_sort |
Vortex-Assisted Ionic Liquid-Based Liquid-Phase Microextraction: A Simple, Low Cost, and Environmentally Friendly Method for Speciation of Antimony in Water |
author |
Santos,Luana B. |
author_facet |
Santos,Luana B. Lemos,Valfredo A. |
author_role |
author |
author2 |
Lemos,Valfredo A. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Santos,Luana B. Lemos,Valfredo A. |
dc.subject.por.fl_str_mv |
liquid phase extraction antimony digital image colorimetry speciation |
topic |
liquid phase extraction antimony digital image colorimetry speciation |
description |
A sensitive method is proposed to determine antimony species using vortex-assisted ionic liquid-based liquid-phase microextraction and digital imaging colorimetry. SbIII forms a ternary complex with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol, ascorbic acid, and iodide in an acid medium. The acceptor phase consists of the ionic liquid 1-butyl-3-methylimidazole hexafluorophosphate, dispersed in the aqueous solution with a vortex stirrer. After centrifugation, SbIII was determined directly in the rich phase. SbV can also be measured by converting to reduced species. The method presented a limit of detection of 1.4 and 4.2 μg L-1 and an enrichment factor of 360. The precision (relative standard deviation) of the method is 7.0%. The procedure was applied to the speciation of antimony in river water and mineral water samples. Some results were compared with those obtained by electrothermal atomic absorption spectrometry (ET AAS). The method is an attractive alternative for determining antimony species, considering the aspects of green analytical chemistry. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000801008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022000801008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20220075 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.33 n.8 2022 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318184925233152 |