Abstract
A high performance liquid chromatographic method was developed for quantifying blends of biodiesel (simple alkyl esters of fatty acids) in petrodiesel. The method uses a silica column with an isocratic mobile phase consisting of hexane and methyl t-butyl ether. Separated components were quantitated using either an evaporative light scattering detector (ELSD) or UV detector. Precision of injection and linearity of response of the ELSD and UV detectors over a range of biodiesel-petrodiesel blends [1–30 v/v %] were established by use of standards. The method also can be used for quantitating similar levels of oils or fats (triacylglycerols) in petrodiesel.
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Foglia, T.A., Jones, K.C. & Phillips, J.G. Determination of Biodiesel and Triacylglycerols in Diesel Fuel by LC. Chroma 62, 115–119 (2005). https://doi.org/10.1365/s10337-005-0599-3
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DOI: https://doi.org/10.1365/s10337-005-0599-3