Abstract
Two native ganglioside mixtures from normal human fetal cerebellum in the 15th (Cc15) and 40th (Cc40) gestational week were subjected to NanoMate high capacity ion trap (HCT) mass spectrometric (MS) and collision induced dissociation (CID) tandem MS (MS2) analysis under thoroughly optimized experimental conditionns. An total of 56 different species were identified in Cc15 and 54 in Cc40. By employing CID MS2 molecular ions, related GD1 (d18:1/20:0) and GM2 (d18:1/19:0) species were structurally characterized in a high throughput mode. The method provided elevated ionization efficiency, high speed of analysis, almost 100% reproducibility at sample consumption per experiment situated in the femtomole range.
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