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. 2017 Apr 3;58(6):1247–1258. doi: 10.1194/jlr.D076190

Fig. 7.

Fig. 7.

HILIC-MS2-based detection of diastereomeric HexSph standards with a C18-sphingosine (d18:1). β-GlcSph elutes first and separates from β-GalSph with Δt = 0.12 ± 0.005 min. After these compounds, α-GalSph elutes with Δt = 0.07 ± 0.005 min significantly behind β-GalSph.