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. Author manuscript; available in PMC: 2006 Feb 2.
Published in final edited form as: Int J Mass Spectrom Ion Process. 1996 Dec 20;157-158:305–318. doi: 10.1016/S0168-1176(96)04407-2

Fig. 1.

Fig. 1

BIRD spectra of hexamethonium bromide (M2+·Br−)+ at a chamber temperature of 229 °C, with delay times of (a) 10 s and (b) 45 s. The isolated (M2+·Br−)+ ion (•) dissociates as shown in Scheme 1, to give species II (○) and species III (▴), which subsequently dissociates to give species IV (▵).