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common neutral losses
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Common neutral loss fragments detected by mass spectrometry are shown.
mass unit
likely composition
1
H
15
CH 3
17
OH
18
H 2 O
19
F
20
HF
27
C 2 H 3 , HCN
28
C 2 H 4 , CO
30
CH 2 O
31
CH 3 O
32
CH 4 O, S
33
CH 3 + H 2 O, HS
33
H 2 S
35(37)
Cl
36(38)
HCl
42
C 3 H 6 , C 2 H 2 O, C 2 H 4 N
43
C 3 H 7 , CH 3 CO
44
CO 2 O, CONH 2
45
C 2 H 5 O
55
C 4 H 7
57
C 4 H 9
59
C 2 H 3 O 2
60
C 2 H 4 O 2
64
SO 2
79(81)
Br
80(82)
HBr
127
I
128
HI
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