What is the source for monoacylglycerol contamination in mass spectrometry?

We are trying to quantify monoacylglycerol (MAG) from plant lipid extracts via GC-MS (after silylation) or LC-MS. In both methods we find a high background of 16:0 MAG and 18:0 MAG in the solvent...

26 October 2015 4,839 3 View