Simple LC-MS lipid class analysis

Manfred , December 14 2018
I am helping to set up a simple lipid analysis method, normal pressure HPLC and single quad. Either HILIC for lipid class or RP for fatty acid chain length. The analysed samples are simple and they do not need to go deep (for the moment). I know the HPLC methods, but I am looking for a standard mixture (lipid classes) for external "calibration" of the analysis, of course they can order single lipids, but maybe a mixture is already available - does anyone know where?
Many thanks