Table 3.

Selected peaks and their assignments observed in negative-ion time of flight secondary ion mass spectrometry (ToF-SIMS) spectra of PANI.

Negative Ion Mass Spectrum	Possible Ion Fragment/Possible Structure
m/z
12	C-
13	CH−
15	NH−
16	O−
17	OH−
24	C2−
25	C2H−
26	CN−
30	CNO−
32	O2−
36	C3−
37	C3H−
42	CNO−
48	C4−
49	C4H−
50	C3N−
127	I−