GC column, for methanol, OPTIMA BioDiesel M, 30 m L, 0.32 mm ID, proprietary df

High performance capillary columns for gas chromatography (GC). OPTIMA BioDiesel M is a special GC phase for analysis of methanol in accordance with DIN EN 14110. The capillary column OPTIMA BioDiesel G allows determination of free glycerol and residues of mono-, di- and triglycerides in FAMEs intended as additives for mineral oils. The procedure can be applied for FAMEs from rapeseed oil (canola oil), sunflower oil and soy bean oil. Glycerol as well as mono- and diglycerides are derivatized to more volatile substances by addition of MSTFA in the presence of pyridine.