date:May 10, 2013
that ARS Chemist Jiann-Tsyh (Ken) Lin developed. The assay is based on ESI-MS (electrospray ionization-mass spectrometry) and enables scientists to glean details about variations in specific triglycerides of interest, referred to as regioisomers. From that, users can develop ratios of regioisomers that can be used to determine whether the sample contains undisclosed oils.
The value of ESI-MS for analyzing plant fatty acids has been recognized since at least 1994. But Lin's ESI-MS protocol helps