https://repositorio.ufba.br/handle/ri/14724
Tipo: | Artigo de Periódico |
Título: | Determination of the oxidation stability of biodiesel and oils by spectrofluorimetry and multivariate calibration |
Título(s) alternativo(s): | Talanta |
Autor(es): | Pepe, Iuri Muniz Meira, Marilena Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Tanajura, Alessandra dos Santos Silva, Humbervânia Reis Gonçalves da Fernando, Jaques D'Erasmo Santos Costa Neto, Pedro Ramos da Santos, Mariana Andrade Nascimento, Luciana Lordelo |
Autor(es): | Pepe, Iuri Muniz Meira, Marilena Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Tanajura, Alessandra dos Santos Silva, Humbervânia Reis Gonçalves da Fernando, Jaques D'Erasmo Santos Costa Neto, Pedro Ramos da Santos, Mariana Andrade Nascimento, Luciana Lordelo |
Abstract: | Oxidation stability is an important quality parameter for biodiesel. In general, the methods used to evaluate the oxidation stability of oils and biodiesels are time-consuming. This work reports the use of spectrofluorimetry, a fast analytical technique, associated with multivariate data analysis as a powerful analytical tool to prediction of the oxidation stability. The prediction of the oxidation stability showed a good agreement with the results obtained by the EN14112 reference method Rancimat. The models presented high correlation (0.99276 and 0.97951) between real and predicted values. The R2 values of 0.98557 and 0.95943 indicated the accuracy of the models to predict the oxidation stability of soy oil and soy biodiesel, respectively. The residual distribution does not follow a trend with respect to the predicted variables indicating the good quality of the fits. |
Palavras-chave: | Biodiesel Vegetable oil Oxidation Spectrofluorimetry Multivariate calibration |
Tipo de Acesso: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/14724 |
Data do documento: | 2011 |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
Arquivo | Descrição | Tamanho | Formato | |
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Iuri M. Pepe.pdf | 522,44 kB | Adobe PDF | Visualizar/Abrir |
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