|Method||Gas Chromatography – Mass Spectrometry|
Fatty Acid Methyl Esters (FAME) are a primary component of biodiesel, usually generated through esterification of vegetable oils. As such, they are a good marker for biodiesel content in diesel fuel.
A portion of the diesel fuel is dissolved in solvent and analysed by gas chromatography against calibration standards to determine the proportion of FAME present in the sample.
% of biodiesel in the diesel fuel. This is important in some applications where biodiesel content is regulated in any way, for instance – pump diesel in the UK can contain up to 7% FAME.
Equally, in some applications, the use of biodiesel is not advisable because of it’s reduced calorific value or susceptibility to biological breakdown compared with conventional diesel.
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