5–21
Transpector CPM Operating Manual
29 CH
3
CH
2
ethane F or ethanol F or isopropyl alcohol
30 C
2
H
6
, NO ethane P, nitric oxide
31 P, C H
2
OH, phosphorus, methanol F,
32 O
2
, S oxygen, sulfur, methanol P
33 HS hydrogen sulfide F
34 H
2
S,
34
S, O
2
hydrogen sulfide P, sulfur isotope,
oxygen isotope
35
35
Cl chlorine isotope, See Note 2
36 HCl,
36
Ar, C
3
hydrochloric acid, argon isotope,
hydrocarbons
37
37
Cl, C
3
H chlorine isotope, See Note 2, hydrocarbons
38
37
HCl, C
3
H
2
hydrochloric acid or see Note 2,
hydrocarbons
39 C
3
H
3
See Note 3, hydrocarbons
40 Ar, C
3
H
4
argon, See Note 1, hydrocarbons
41 C
3
H
5
See Note 1, hydrocarbons
42 C
3
H
6
See Note 1, hydrocarbons
43 C
3
H
7
, CH
3
CO Note 1, acetone F or methyl ethyl ketone F
44 CO
2
, C
3
H
8
Carbon dioxide, See Note 3
45 CH
3
CH
2
O ethanol F or isopropyl alcohol F
46 CH
3
CH
2
OH ethanol P
47 C
35
Cl See Note 2
48 HC
35
Cl, SO See Note 2, sulfur dioxide F
49 C
37
Cl See Note 2
50 C
37
Cl, CF
2
, C
4
H
2
See Note 2, freon F, Note 3
NOTE: (1) Fragments of several hydrocarbons, such as mechanical pump
oil, diffusion pump oil, vacuum grease, cutting oil, and organic
solvents.
(2) Fragments of several chlorinated hydrocarbons, such as carbon
tetrachloride, tichloroethylene, and many freons.
(3) Fragments from both straight chain hydrocarbons and benzene
ring hydrocarbons.
(4) F = Fragment ion; P = Parent ion; DI = Doubly ionized
Table 5-4 Spectrum interpretation guide (continued)
AMU # Chemical Symbol Sources
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