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dc.contributor.author Dias, Adriana Neves
dc.contributor.author Cerqueira, Maristela Barnes Rodrigues
dc.contributor.author Moura, Renata Rodrigues de
dc.contributor.author Kurz, Márcia Helena Scherer
dc.contributor.author Clementin, Rosilene Maria
dc.contributor.author D'Oca, Marcelo Gonçalves Montes
dc.contributor.author Primel, Ednei Gilberto
dc.date.accessioned 2014-09-18T21:50:11Z
dc.date.available 2014-09-18T21:50:11Z
dc.date.issued 2012
dc.identifier.citation DIAS, Adriana Neves et al. Optimization of a method for the simultaneous determination of glycerides, free and total glycerol in biodiesel ethyl esters from castor oil using gas chromatography. Fuel (Guildford), v. 94, p. 178-183, 2012. Disponível em: <http://migre.me/lz4Bl>. Acesso em: 10 set. 2014 pt_BR
dc.identifier.issn 0016-2361
dc.identifier.uri http://repositorio.furg.br/handle/1/4585
dc.description.abstract This paper describes the optimization of a method of simultaneous determination of glycerides, free and total glycerol in biodiesel ethyl esters from castor oil by using gas chromatography. Changes were proposed for the methods ASTM D 6584 and EN 14105 in order to determine these by-product contaminants in biodiesel from castor oil. The silylation reaction for this biodiesel was optimized, and 250 μL MSTFA was used. Its accuracy values were between 70% and 120% with RSD <11%. The identification of monoricinolein and diricinolein was made by gas chromatography with mass spectrometry detection (GC–MS). The matrix effect (ME) was investigated and considered low for glycerol, mono- and diolein; it was medium for triolein. The method was robust even when there were variations in the matrix. It was also successfully used for the determination of glycerides, free and total glycerol in samples of biodiesel from castor oil. pt_BR
dc.language.iso eng pt_BR
dc.rights open access pt_BR
dc.subject Castor oil pt_BR
dc.subject Biodiesel ethyl esters pt_BR
dc.subject By-product contaminants pt_BR
dc.subject Gas chromatography pt_BR
dc.title Optimization of a method for the simultaneous determination of glycerides, free and total glycerol in biodiesel ethyl esters from castor oil using gas chromatography pt_BR
dc.type article pt_BR
dc.identifier.doi 10.1016/j.fuel.2011.10.037 pt_BR


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