Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.microc.2017.07.007 http://hdl.handle.net/11449/175282 |
Resumo: | The present work is aimed at investigating nickel nanoparticles on reduced graphene oxide modified electrode as an amperometric detector along with anion-exchange chromatography. The modified electrode was found to exhibit electrocatalytic oxidation efficiently in relation to amino acids with high stability. The effects of hydroxide and acetate as mobile phase on the retention time, retention factor, separation factor, and peak resolution were subjected to thorough evaluation. The proposed method presented linear ranges from 2.5 × 10− 6 to 1.0 × 10− 3 mol L− 1 with excellent correlation coefficient of at least 0.9997 in optimized anion-exchange chromatographic conditions. The limits of detection for all the compounds analyzed ranged from 8.7 × 10− 7 to 2.0 × 10− 5 mol L− 1. The amperometric sensitivity was found to be within the range of 3.3 × 105 and 5.3 × 106 nA mol− 1 L. The recovery study showed that the method has good accuracy and repeatability, with recoveries between 95 ± 4.7 and 100 ± 1.7%. Experiment results obtained demonstrated that the sensor has relatively good long-term stability, accuracy, and sensitivity, besides being devoid of interference. The proposed analytical method was applied towards the determination of amino acids in sugarcane vinasse sample obtained from a sugar and ethanol plant. |
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Repositório Institucional da UNESP |
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Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrodeAmino acidsAmperometric detectorElectrochemical detectionStillageWastewaterThe present work is aimed at investigating nickel nanoparticles on reduced graphene oxide modified electrode as an amperometric detector along with anion-exchange chromatography. The modified electrode was found to exhibit electrocatalytic oxidation efficiently in relation to amino acids with high stability. The effects of hydroxide and acetate as mobile phase on the retention time, retention factor, separation factor, and peak resolution were subjected to thorough evaluation. The proposed method presented linear ranges from 2.5 × 10− 6 to 1.0 × 10− 3 mol L− 1 with excellent correlation coefficient of at least 0.9997 in optimized anion-exchange chromatographic conditions. The limits of detection for all the compounds analyzed ranged from 8.7 × 10− 7 to 2.0 × 10− 5 mol L− 1. The amperometric sensitivity was found to be within the range of 3.3 × 105 and 5.3 × 106 nA mol− 1 L. The recovery study showed that the method has good accuracy and repeatability, with recoveries between 95 ± 4.7 and 100 ± 1.7%. Experiment results obtained demonstrated that the sensor has relatively good long-term stability, accuracy, and sensitivity, besides being devoid of interference. The proposed analytical method was applied towards the determination of amino acids in sugarcane vinasse sample obtained from a sugar and ethanol plant.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (Unesp) Institute of Chemistry Araraquara Campus Department of Analytical Chemistry, Street Prof. Francisco Degni, 55, JardimQuitandinhaSão Paulo State University (Unesp) Institute of Chemistry Araraquara Campus Department of Analytical Chemistry, Street Prof. Francisco Degni, 55, JardimQuitandinhaFAPESP: 2014/23846-5Universidade Estadual Paulista (Unesp)da Silva, José Luiz [UNESP]Beluomini, Maísa Azevedo [UNESP]Sedenho, Graziela Cristina [UNESP]Stradiotto, Nelson Ramos [UNESP]2018-12-11T17:15:09Z2018-12-11T17:15:09Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article374-382application/pdfhttp://dx.doi.org/10.1016/j.microc.2017.07.007Microchemical Journal, v. 134, p. 374-382.0026-265Xhttp://hdl.handle.net/11449/17528210.1016/j.microc.2017.07.0072-s2.0-850304546872-s2.0-85030454687.pdf0072173018005712Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMicrochemical Journalinfo:eu-repo/semantics/openAccess2023-12-04T06:14:21Zoai:repositorio.unesp.br:11449/175282Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:28:42.931688Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
title |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
spellingShingle |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode da Silva, José Luiz [UNESP] Amino acids Amperometric detector Electrochemical detection Stillage Wastewater |
title_short |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
title_full |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
title_fullStr |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
title_full_unstemmed |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
title_sort |
Determination of amino acids in sugarcane vinasse by ion chromatographic using nickel nanoparticles on reduced graphene oxide modified electrode |
author |
da Silva, José Luiz [UNESP] |
author_facet |
da Silva, José Luiz [UNESP] Beluomini, Maísa Azevedo [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author_role |
author |
author2 |
Beluomini, Maísa Azevedo [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
da Silva, José Luiz [UNESP] Beluomini, Maísa Azevedo [UNESP] Sedenho, Graziela Cristina [UNESP] Stradiotto, Nelson Ramos [UNESP] |
dc.subject.por.fl_str_mv |
Amino acids Amperometric detector Electrochemical detection Stillage Wastewater |
topic |
Amino acids Amperometric detector Electrochemical detection Stillage Wastewater |
description |
The present work is aimed at investigating nickel nanoparticles on reduced graphene oxide modified electrode as an amperometric detector along with anion-exchange chromatography. The modified electrode was found to exhibit electrocatalytic oxidation efficiently in relation to amino acids with high stability. The effects of hydroxide and acetate as mobile phase on the retention time, retention factor, separation factor, and peak resolution were subjected to thorough evaluation. The proposed method presented linear ranges from 2.5 × 10− 6 to 1.0 × 10− 3 mol L− 1 with excellent correlation coefficient of at least 0.9997 in optimized anion-exchange chromatographic conditions. The limits of detection for all the compounds analyzed ranged from 8.7 × 10− 7 to 2.0 × 10− 5 mol L− 1. The amperometric sensitivity was found to be within the range of 3.3 × 105 and 5.3 × 106 nA mol− 1 L. The recovery study showed that the method has good accuracy and repeatability, with recoveries between 95 ± 4.7 and 100 ± 1.7%. Experiment results obtained demonstrated that the sensor has relatively good long-term stability, accuracy, and sensitivity, besides being devoid of interference. The proposed analytical method was applied towards the determination of amino acids in sugarcane vinasse sample obtained from a sugar and ethanol plant. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 2018-12-11T17:15:09Z 2018-12-11T17:15:09Z |
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://dx.doi.org/10.1016/j.microc.2017.07.007 Microchemical Journal, v. 134, p. 374-382. 0026-265X http://hdl.handle.net/11449/175282 10.1016/j.microc.2017.07.007 2-s2.0-85030454687 2-s2.0-85030454687.pdf 0072173018005712 |
url |
http://dx.doi.org/10.1016/j.microc.2017.07.007 http://hdl.handle.net/11449/175282 |
identifier_str_mv |
Microchemical Journal, v. 134, p. 374-382. 0026-265X 10.1016/j.microc.2017.07.007 2-s2.0-85030454687 2-s2.0-85030454687.pdf 0072173018005712 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Microchemical Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
374-382 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129073744969728 |