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Development of a chromatographic low pressure flow injection system using amperometric detection: Application to the analysis of niacin in coffee

2015Journal article Restricted access
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dc.contributor.authorSantos, João Rodrigo
dc.contributor.authorRangel, António O. S. S.
dc.date.accessioned2016-01-08T12:01:19Z
dc.date.available2016-01-08T12:01:19Z
dc.date.issued2015
dc.description.abstractIn this work, an analytical flow system able to perform low pressure chromatography with amperometric detection is presented. As case study, the determination of niacin (vitamin B3) in coffee brewed samples was selected. The manifold comprised a 1.0 cm length monolithic column coated with didecyldimethylammonium bromide, a laboratory-made boron doped diamond electrode, and featured in-line ionic strength adjustment of the mobile phase. The figures of merit concerning the selected case study namely, detection limit, 7.90 10 7 M, determination rate, ca. 10 samples h 1, mobile phase and ISA solution consumption, ca. 2.6 mL per analysis, and CV, below 5% for retention time and peak height, showed the competitiveness of this analytical strategy comparing to the described HPLC methods for niacin determination. The strategy displays a simple configuration, low cost, fast and easy assembling, foreseeing its use to general purpose applications.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationSANTOS, João Rodrigo; RANGEL, António O. S. S. - Development of a chromatographic low pressure flow injection system using amperometric detection: Application to the analysis of niacin in coffee. Food Chemistry. ISSN 0308-8146. N.º 187 (2015), p. 152–158pt_PT
dc.identifier.doi10.1016/j.foodchem.2015.04.093pt_PT
dc.identifier.eid84928485024
dc.identifier.eissn1873-7072
dc.identifier.issn0308-8146
dc.identifier.pmid25977010
dc.identifier.urihttp://hdl.handle.net/10400.14/18865
dc.identifier.wos000355885400021
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationStrategic Project - LA 16 - 2011-2012
dc.relationDESENVOLVIMENTO DE SISTEMAS AUTOMÁTICOS MINIATURIZADOS DE BAIXO CUSTO NA CARACTERIZAÇÃO QUÍMICA DE CAFÉS
dc.subjectLow pressure chromatographypt_PT
dc.subjectFlow analysispt_PT
dc.subjectCoffeept_PT
dc.subjectVitamin B3pt_PT
dc.subjectNiacinpt_PT
dc.subjectBoron doped diamond electrodept_PT
dc.subjectModified monolithic columnspt_PT
dc.titleDevelopment of a chromatographic low pressure flow injection system using amperometric detection: Application to the analysis of niacin in coffeept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardTitleDESENVOLVIMENTO DE SISTEMAS AUTOMÁTICOS MINIATURIZADOS DE BAIXO CUSTO NA CARACTERIZAÇÃO QUÍMICA DE CAFÉS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F63492%2F2009/PT
oaire.citation.endPage158
oaire.citation.startPage152
oaire.citation.titleFood Chemistry
oaire.citation.volume187
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSantos
person.familyNameSantos Silva Rangel
person.givenNameJoão
person.givenNameAntónio Osmaro
person.identifier.ciencia-id2315-DA7D-9221
person.identifier.ciencia-idD61D-7CFB-178A
person.identifier.orcid0000-0002-4182-4431
person.identifier.orcid0000-0002-6486-8947
person.identifier.ridD-3198-2012
person.identifier.scopus-author-id15763817400
person.identifier.scopus-author-id7004827387
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationaabaef19-ecc1-4be4-bba2-5a11228a53be
relation.isAuthorOfPublication467be022-fd9c-4549-aa48-48ebcc1098eb
relation.isAuthorOfPublication.latestForDiscovery467be022-fd9c-4549-aa48-48ebcc1098eb
relation.isProjectOfPublication649dc879-e68a-45df-bcc4-1e66a0521a49
relation.isProjectOfPublication15fe8787-765a-40ec-b79a-57189df5775c
relation.isProjectOfPublication.latestForDiscovery649dc879-e68a-45df-bcc4-1e66a0521a49

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