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dc.contributor.author
Ferretti, Cristián Alejandro
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dc.contributor.author
Apesteguia, Carlos Rodolfo
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dc.contributor.author
Di Cosimo, Juana Isabel
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dc.date.available
2018-08-02T22:02:12Z
dc.date.issued
2011-04
dc.identifier.citation
Ferretti, Cristián Alejandro; Apesteguia, Carlos Rodolfo; Di Cosimo, Juana Isabel; Development and validation of a gas chromatography method for the simultaneous determination of multicomponents during monoglyceride synthesis by glycerolysis of methyl oleate: Application to homogeneous and heterogeneous catalysis; Asociación Química Argentina; Journal of the Argentine Chemical Society; 98; 4-2011; 16-28
dc.identifier.issn
0365-0375
dc.identifier.uri
http://hdl.handle.net/11336/54012
dc.description.abstract
A gas chromatography (GC) method for the simultaneous determination of glycerol, methyl oleate, monoglycerides (alpha- and beta-glyceryl monooleates), diglycerides (1,2- and 1,3-glyceryl dioleates), and triglycerides is postulated and validated to monitor the reaction product evolution during the catalytic synthesis of monoglycerides by glycerolysis of methyl oleate. The method is suitable for quantitative analysis of the multiphase reaction system, either under liquid or solid catalyzed conditions in a wide concentration range. Excellent separation of all the analytes was achieved with a 15 m-capillary column of 100% methyl polysiloxane in 35 minutes. A discussion on different solvents (toluene and n-hexane) and derivatization procedures is presented. A proper and unique combination of silylating agents for the trimethylsilylation of the free hydroxyl groups of glycerol, mono- and diglycerides is proposed as well as two internal standards, n-hexadecane and cholesterol. The method accuracy was evaluated from recovery experiments and the precision by repeated analysis of each sample. Relative recoveries of the analytes ranged from 98-105 % and relative standard deviations from 4.8 to 13.0 %. Good linearity of calibration curves was obtained in the investigated concentration ranges with high correlation coefficients (r2 > 0.996) for all the analytes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Asociación Química Argentina
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Glycerolysis
dc.subject
Monoglycerides
dc.subject
Gas Chromatography
dc.subject.classification
Otras Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Development and validation of a gas chromatography method for the simultaneous determination of multicomponents during monoglyceride synthesis by glycerolysis of methyl oleate: Application to homogeneous and heterogeneous catalysis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-31T17:35:20Z
dc.journal.volume
98
dc.journal.pagination
16-28
dc.journal.pais
Argentina
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dc.description.fil
Fil: Ferretti, Cristián Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.description.fil
Fil: Apesteguia, Carlos Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.description.fil
Fil: Di Cosimo, Juana Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
dc.journal.title
Journal of the Argentine Chemical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aqa.org.ar/images/anales/pdf98/98art3.pdf
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aqa.org.ar/index.php/volumenes-publicados
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