Aviv Amirav, Professor of Chemistry at Tel Aviv University and Director - Aviv Analytical
Thus, motivated by this challenge and after discussing it with Dr. Hans-Gerd Janssen from Unilever we decided to analyze glycidyl esters using the 5975-SMB GC-MS with Cold-EI, and our results are reported in this post.
|Figure 1a. Full scan total ion count mass chromatogram of the glycidyl esters mixture|
|Figure 1b. Cold EI mass spectra of glycidyl laurate (MW=256) at 3.5 min elution time, glycidyl myristate (MW=284) at 4.13 min elution time and glycidyl palmitate (MW=312) at 4.73 min elution time|
|Figure 1c. Cold EI mass spectra of glycidyl oleate (MW=338) and glycidyl linoleate (MW=336) coeluting at 5.21 min elution time and glycidyl stearate (MW=340) at 5.3 min elution time.|
|Figure 2. Cold EI mass spectrum of glycidyl linoleate which is mixed with some contribution of co-eluting glycidyl oleate.|
|Figure 5. SIM trace of 6.6 pg on-column of glycidyl stearate using its molecular ion at m/z=340.3.|