Interpreting Mass Spectra M+86 for hexane m/z=71 arises from loss of methyl radical from hexane cation radical m/z=57 arises from loss of CH3CH2CH2CH2CH2CH3 ethyl radical from hexane cation radical Hexane m/z=43 arises from loss of propyl radical from hexane [CH3CH2CH2CH2CH2CH3]+. cation radical Molecular ion,M+ m/z=29 arises from loss of (m/2=86) butyl radical from hexane cation radical CH3CH2CH2CH2CH2+ CH3CH2CH2CH2+ CH3CH2CH2+ CH3CH2+ miz: 71 43 29 Relative abundance (%) 10 100(base peak) 75 40M+ = 86 for hexane ▪ m/z = 71 arises from loss of methyl radical from hexane cation radical ▪ m/z = 57 arises from loss of ethyl radical from hexane cation radical ▪ m/z = 43 arises from loss of propyl radical from hexane cation radical ▪ m/z = 29 arises from loss of butyl radical from hexane cation radical Interpreting Mass Spectra