Preliminary Analysis of the Glycolipid Profile in Secondary Brain Tumors

Figure 5

(-) MALDI QTOF MS/MS of the ion [M-H⁺]^- at m/z 1407.710 isolated from secondary brain tumor. Ion source 1: 25.00 kV; ion source 2: 21.30 kV; lens: 10.50 kV; reflector: 26.30 kV; reflector 2: 13.85 kV, pulsed ion extraction: 50 ns. Matrix: 3,5-DHB. Inset:. Fragmentation scheme of KDN-GM1 (t16 : 1/12 : 0).