IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000901089 |
Resumo: | This work propose the development of an experiment that may be used for the teaching of chemistry for undergraduate students in general, using the analysis of olive oil and soybean oil toward the direct injection electrospray ionization Mass Spectrometry - DI-MS/MS with 18-crown-6 as organic modifier. Firstly, olive oil was analyzed from two different brands, one of reputed brand and the other of popular brand and lower price. Soybean oil of popular brand was also analyzed in order to search possible similarities in the components of these oils and to search adulterations of olive oil with soybean oil. The mass spectra were obtained in positive ion mode of analysis, and allowed us to observe characteristic ions of soybean oil, olive oil, and identify the adulterated olive oil. This simple experiment of easy development may be applied in any institution which has a mass spectrometer with electrospray ionization. In addition, with the use of the experiment, the teacher can illustrate general chemistry concepts such as: molecular mass, preparation of solutions, oxidation, and acid-base reactions. |
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Química Nova (Online) |
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IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSASmass spectrometrygeneral chemistryanalysis of oilsadulteration in oilsThis work propose the development of an experiment that may be used for the teaching of chemistry for undergraduate students in general, using the analysis of olive oil and soybean oil toward the direct injection electrospray ionization Mass Spectrometry - DI-MS/MS with 18-crown-6 as organic modifier. Firstly, olive oil was analyzed from two different brands, one of reputed brand and the other of popular brand and lower price. Soybean oil of popular brand was also analyzed in order to search possible similarities in the components of these oils and to search adulterations of olive oil with soybean oil. The mass spectra were obtained in positive ion mode of analysis, and allowed us to observe characteristic ions of soybean oil, olive oil, and identify the adulterated olive oil. This simple experiment of easy development may be applied in any institution which has a mass spectrometer with electrospray ionization. In addition, with the use of the experiment, the teacher can illustrate general chemistry concepts such as: molecular mass, preparation of solutions, oxidation, and acid-base reactions.Sociedade Brasileira de Química2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000901089Química Nova v.41 n.9 2018reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170256info:eu-repo/semantics/openAccessTonin,Angélica Priscila ParussoloCarneiro,Gabrielly RibeiroRibeiro,Marcos Alessandro dos SantosCedran,Jaime da CostaSilva,Valquíria de MoraesMeurer,Eduardo Cesarpor2018-10-11T00:00:00Zoai:scielo:S0100-40422018000901089Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2018-10-11T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
title |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
spellingShingle |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS Tonin,Angélica Priscila Parussolo mass spectrometry general chemistry analysis of oils adulteration in oils |
title_short |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
title_full |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
title_fullStr |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
title_full_unstemmed |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
title_sort |
IDENTIFICAÇÃO DE ADULTERAÇÃO EM ÓLEOS DE OLIVA: PROBLEMATIZANDO A INTRODUÇÃO À ESPECTROMETRIA DE MASSAS |
author |
Tonin,Angélica Priscila Parussolo |
author_facet |
Tonin,Angélica Priscila Parussolo Carneiro,Gabrielly Ribeiro Ribeiro,Marcos Alessandro dos Santos Cedran,Jaime da Costa Silva,Valquíria de Moraes Meurer,Eduardo Cesar |
author_role |
author |
author2 |
Carneiro,Gabrielly Ribeiro Ribeiro,Marcos Alessandro dos Santos Cedran,Jaime da Costa Silva,Valquíria de Moraes Meurer,Eduardo Cesar |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Tonin,Angélica Priscila Parussolo Carneiro,Gabrielly Ribeiro Ribeiro,Marcos Alessandro dos Santos Cedran,Jaime da Costa Silva,Valquíria de Moraes Meurer,Eduardo Cesar |
dc.subject.por.fl_str_mv |
mass spectrometry general chemistry analysis of oils adulteration in oils |
topic |
mass spectrometry general chemistry analysis of oils adulteration in oils |
description |
This work propose the development of an experiment that may be used for the teaching of chemistry for undergraduate students in general, using the analysis of olive oil and soybean oil toward the direct injection electrospray ionization Mass Spectrometry - DI-MS/MS with 18-crown-6 as organic modifier. Firstly, olive oil was analyzed from two different brands, one of reputed brand and the other of popular brand and lower price. Soybean oil of popular brand was also analyzed in order to search possible similarities in the components of these oils and to search adulterations of olive oil with soybean oil. The mass spectra were obtained in positive ion mode of analysis, and allowed us to observe characteristic ions of soybean oil, olive oil, and identify the adulterated olive oil. This simple experiment of easy development may be applied in any institution which has a mass spectrometer with electrospray ionization. In addition, with the use of the experiment, the teacher can illustrate general chemistry concepts such as: molecular mass, preparation of solutions, oxidation, and acid-base reactions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-01 |
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=S0100-40422018000901089 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000901089 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170256 |
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 |
Química Nova v.41 n.9 2018 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318119259209728 |