Figure 3.

Graphical comparison of product ions detected above 10% of maximum intensity for different native and labeled TG species. *: Dotted line indicating product ions that were the best candidates to be used as MRM precursors for quantification. **: Native ion C₇H₁₁ with m/z 95 correspond with fully labeled ion C₇D₁₁ with m/z 106. ***: Absence versus presence of the C₇H₁₁ m/z 95 ion for α-carbon versus the ω-carbon labeled species, indicating that the m/z 95 ion contains the α-hydrogens. ****: Identical m/z ions (in dashed rectangle) from native and glyceryl-d₅-labeled 18:1 species, indicating that the low mass fragments do not originate from the glycerol backbone