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. Author manuscript; available in PMC: 2021 Dec 17.
Published in final edited form as: J Am Soc Mass Spectrom. 2020 Oct 5;31(12):2495–2502. doi: 10.1021/jasms.0c00201

Figure 1.

Figure 1.

Norharmane (NRM) matrix facilitates detection of cardiolipin synthetic standard and endogenous CL from mouse tissue. (a) MALDI mass spectra of various matrices (i) 9-AA, (ii) DAN, (iii) DHB, and (iv) NRM with 4.7 pg/mm2 of synthetic CL(68:2) detected as the ion m/z 1404, [M-H]−. (b) MALDI-MSI, mouse kidney section prepared with given matrix, ion m/z 1450 shown, spatial resolution 200 μm, normalized by total ion current (TIC). (c) Averaged mass spectra of each tissue from (b) prepared with 9-AA, DHB, and NRM. Negative ion mode Autoflex MALDI-TOF.