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. Author manuscript; available in PMC: 2021 May 5.
Published in final edited form as: Anal Chem. 2020 Apr 23;92(9):6521–6528. doi: 10.1021/acs.analchem.0c00129

Figure 3.

Figure 3.

HCD spectra of four acylcarnitine isomers A, B, C and D (m/z: 290.1598, ion formula: C13H24NO6+). 3A is the spectrum of adipoyl-L-carnitine at 20 V in NIST17 Tandem MS Library. 3B is the spectrum of 3-methylglutary-L-carnitine at 20 V in NIST17 Tandem MS Library. 3C is the spectrum of isomer C at NCE 25. 3D is the spectrum of isomer D at NCE 25. In the spectra, the code P means precursor.