3-甲基-2-氧代丁酰乙酯

Mass

MS-IW-2359          
ethyl 3-methyl-2-oxobutyrate
C7H12O3             (Mass of molecular ion:    144)

   Source Temperature: 200 °C
   Sample Temperature: 160 °C
   Reservoir, 75 eV

      15.0       1.7
      26.0       2.4
      27.0      22.4
      28.0       6.1
      29.0      38.3
      30.0       1.4
      31.0       2.5
      39.0       7.6
      40.0       1.6
      41.0      30.2
      42.0      10.0
      43.0     100.0
      44.0       6.1
      45.0       4.8
      47.0       1.9
      55.0       2.5
      57.0       1.1
      59.0       1.1
      69.0       1.1
      70.0      14.3
      71.0      98.5
      72.0       5.3
      73.0       2.1
      88.0       1.4
     144.0       5.9