Maleic acid

Mass

MS-IW-4644          
maleic acid
C4H4O4              (Mass of molecular ion:    116)

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

      15.0       1.5
      17.0       3.2
      18.0      16.6
      24.0       1.2
      25.0       6.5
      26.0      46.2
      27.0      36.5
      28.0       9.7
      29.0       8.1
      37.0       1.0
      41.0       4.7
      42.0       3.6
      43.0       5.8
      44.0      12.5
      45.0      66.6
      46.0      16.8
      52.0       1.9
      53.0      16.9
      54.0      34.0
      55.0      32.8
      56.0       1.3
      69.0       2.0
      70.0       1.8
      71.0      14.5
      72.0     100.0
      73.0       4.3
      81.0       1.5
      82.0       1.9
      98.0      22.7
      99.0      30.9
     100.0       1.6
     116.0       2.2
     117.0       1.2

Assign. Shift(ppm) A 11. B 6.285

     Hz     ppm     Int.

   2511.95   6.286   1000