Gas chromatograms of partially methylated alditol acetates derived from the isolated GSLs. A: CMS; B: CDS; C: nAtCTS; D: AtCTS; E: nAtCTeS; F: AtCTeS; G: CPS; H: CHS; a: 1Glc; b: 1Man; c: 1,4Glc; d: 1Fuc; e: 1,4Glc and 1,3Man; f: 1GlcNAc; g: 1,2Fuc; h: 1GalNAc; i: 1,4GlcNAc; j: 1,3,4GlcNAc.