90 o-Ethylphenol M-CH3] 122(M) 6 0- [M-H2O M 3 C6H5 0TTTTTT1 0102030405060708090100110120130140150 首 页下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 o-Ethylphenol 122(M) M-CH3 M-H2O M C6H5