Mass

MS-IW-9794          
(S)-3-methyl-4-phenyl-2-butanone semicarbazone
C12H17N3O           (Mass of molecular ion:    219)

   Source Temperature: 150 °C
   Sample Temperature: 130 °C
   Direct, 75 eV

      15.0       1.6
      16.0       2.0
      17.0       4.0
      18.0       6.5
      27.0       5.7
      28.0       4.6
      29.0       5.9
      30.0       4.2
      31.0       1.4
      38.0       1.0
      39.0       9.3
      40.0       3.5
      41.0      17.1
      42.0      25.6
      43.0      14.5
      44.0      20.1
      50.0       1.6
      51.0       5.7
      52.0       1.8
      53.0       2.6
      54.0       1.1
      55.0       9.9
      56.0       2.3
      57.0      10.0
      57.5       1.0
      58.0       4.4
      60.0       1.3
      63.0       3.3
      64.0       1.2
      65.0      12.6
      66.0       1.0
      68.0      24.1
      69.0       2.4
      70.0       1.4
      71.0       8.9
      72.0       2.1
      76.0       2.0
      77.0       5.7
      78.0       3.7
      79.0       1.5
      83.0       6.1
      84.0       2.9
      85.0     100.0
      86.0       5.8
      89.0       2.9
      90.0       1.3
      91.0      69.1
      92.0       7.5
      93.0       1.4
     100.0      43.1
     101.0       5.8
     102.0       1.7
     103.0       6.3
     104.0       3.3
     105.0       4.8
     106.0       4.4
     111.0       3.7
     115.0      14.6
     116.0       4.9
     117.0      23.2
     118.0      22.9
     119.0       3.2
     120.0       1.2
     127.0       1.4
     128.0      25.1
     129.0       6.5
     130.0       2.7
     131.0       5.5
     132.0       1.8
     133.0       1.1
     141.0       3.7
     142.0       3.8
     143.0       3.8
     144.0      13.2
     145.0      12.8
     146.0       6.6
     147.0       1.1
     149.0       2.3
     157.0       1.9
     158.0      16.7
     159.0       6.6
     160.0      10.5
     161.0       8.5
     162.0       1.1
     174.0       2.1
     175.0       1.2
     176.0       5.5
     187.0       4.6
     191.0       1.4
     202.0       2.3
     204.0      13.1
     205.0       1.9
     219.0      34.8
     220.0       5.4