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Observation MS profiles of mouse and human meibum.
Panel A. Mass spectrum of mouse meibum in the m/z range of 200 to 1200. Normal phase HPLC-atmospheric pressure chemical ionization MS, positive ion mode. Averaged spectrum of meibomian lipids is shown.
Panel B. Mass spectrum of human meibum. Same conditions as in Panel A. (from (Butovich et al., 2016)). Most of ions depicted in Panels A and B are (M+H)+ adducts of the corresponding lipid species.
