title: Thermal lens spectroscopy for the differentiation of biodiesel-diesel blends.
abstract: Thermal lens (TL) spectroscopy was applied to biofuels to test its potential to distinguish diesel from biodiesel in blended fuels. Both the heat and mass diffusion effects observed using a TL procedure provide significant information about biodiesel concentrations in blended fuels. The results indicate that the mass diffusivity decreases 32% between diesel and the blend with 10% biodiesel added to the diesel. This simple TL procedure has the potential to be used for in loco analyses to certify the mixture and quality of biodiesel-diesel blends.
authors.affiliation: Grupo de Espectroscopia Óptica e Fototérmica, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 351, Dourados, MS, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Ventura
authors.forename: E
authors.initials: E
authors.lastname: Simionatto
authors.forename: L H C
authors.initials: LH
authors.lastname: Andrade
authors.forename: S M
authors.initials: SM
authors.lastname: Lima
mesh_terms: D056804:Biofuels / Q000032:analysis*; D004058:Diffusion; D005742:Gasoline / Q000032:analysis*; D008962:Models, Theoretical; D055620:Optical Phenomena; D013057:Spectrum Analysis / Q000379:methods*; D013696:Temperature
chemical_list: D056804:Biofuels; D005742:Gasoline