Methylcyclohexane 83 10 M=98 80 70 98(M) 60 55 50 40 30. 69 20 29 10 0102030405060708090100110 ●cH 3 mz=98 m/z=83 页/页 页M=98 98(M ) 10 0 80 90 100 60 50 30 20 40 70 % OF BASE PEAK 0 10 20 30 40 50 60 70 80 90 100 110 83 69 55 41 29 MethylCyclohexane CH3 m/z=98 m/z=83