四、醚的质谱图 ethers 100 45 Ethyl sec-butyl ether MW102 M-CH3CH2 73 29 60 CH3CH2 73 H 告 50 CH3-CH2 CH2CH3 4 29 CH3 57 87 M-CH3 57 10- 87 102IM 102030405060708090100110120130140150 10 0 80 90 100 60 50 30 20 40 70 0 20 40 60 80 100 120 140 % OF BASE PEAK 10 30 50 70 90 110 130 150 CH3CH2 57 M-CH3CH2 M-CH3 M Ethyl sec-butyl ether MW 102 73 29 87 57 H3C C H OH CH3 CH2 H C CH3 O CH2 CH3 45 29 73 87 102 四、 醚的质谱图 ethers