Mass

MS-NW-5833          
12-crown-4
C8H16O4             (Mass of molecular ion:    176)

   Source Temperature: 260 °C
   Sample Temperature: 190 °C
   Reservoir, 75 eV

      15.0       8.5
      18.0       1.3
      19.0       2.1
      26.0       1.9
      27.0       9.2
      28.0      26.0
      29.0      10.1
      30.0       2.7
      31.0      10.7
      41.0       3.1
      42.0       9.6
      43.0      38.0
      44.0      34.3
      45.0     100.0
      46.0       2.6
      56.0       1.4
      57.0       8.1
      58.0      14.9
      59.0      11.8
      60.0       1.1
      61.0       2.5
      70.0       4.8
      71.0       4.2
      72.0       8.8
      73.0      16.6
      74.0       2.5
      75.0       5.4
      86.0       3.5
      87.0      14.1
      88.0      10.3
      89.0      26.4
      90.0       1.4
     101.0       5.3
     102.0       2.4
     103.0       1.6
     104.0       1.0
     117.0       1.3
     133.0       4.2

Parameter ppm Hz D(A) 3.703

     Hz     ppm     Int.

   1110.90   3.703   1000