I am searching for a TLC based protocol for quantifying the TAG content in solvent(chloroform) extracted lipids, how can I quantify the relative TAG amount in total lipids
have you separated the lipids from the other compounds? If so extraction of the lipid dots from the TLC plate and measuring those after methanolysis on GC-FID or MS could work. directly on TLC it is very difficult to quantify any compound accurate.
Thank you Thijs Kops and Simon Hammann. I have extracted the lipids using a modified Bligh and Dyer Method. I want to know if derivatising TLC separated TAGs and subsequent analysis via GC-FID or MS would render me the exact quantity, because trans-esterification would cause each lipid attached to glycerol backbone in a TAG molecule to be converted to respective FAME, then how there will be any existance of TAG molecule after derivatization. Please feel free to discuss, I might be missing something here.