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Low-collision (a) and high-collision (b) energy exact mass spectra of TG (16:0/18:1/20:1). The low-energy spectrum only contains the precursor ion at m/z 904.53508, whereas in the high-energy spectrum, various diagnostic fragments appear as the loss of the various FA chains at 631.56710, 605.55007, 577.51907, and 520.3407.
