. Author manuscript; available in PMC: 2015 Jan 21.

Published in final edited form as: Anal Chem. 2014 Jan 8;86(2):1210–1214. doi: 10.1021/ac403386q

Table 1.

Reduced Mobility (Ko) and Collision Cross Section (CCS) values in nitrogen of ATHP [M+2H]⁺², [M+3H]⁺³ and [M+4H]⁺⁴ observed as a function of the ESI solvent conditions.

Isomer band	K_o (cm² V⁻¹s⁻¹)	CCS [A²]	ESI solution	Decay ↓/ Growth ↑ Lifetime (ms)
Isomer band	K_o (cm² V⁻¹s⁻¹)	CCS [A²]	ESI solution	ESI Solvent Condition II	ESI Solvent Condition III
[M+2H]⁺² A	1.0878	370	III		↓ 650±30
[M+2H]⁺² B	1.0699	376	I, II, III	↓ 150±40	↓ 650±30
[M+2H]⁺² C	1.0543	382	I, II, III	↑ 150±50	↑ 650±30
[M+2H]⁺² D	1.0311	390	II	No variation	-
[M+2H]⁺² E	1.0241	393	I, III		No variation
[M+3H]⁺³ F	1.3891	435	I, II, III	-	↓ 100±20
[M+3H]⁺³ G	1.3743	439	I, II, III	-	↓ 350±30
[M+3H]⁺³ H	1.3487	448	I, II, III	-	↑ 350±30
[M+3H]⁺³ I	1.3260	455	I, II, III	-	↑ 100±20
[M+3H]⁺³ J	1.3051	463	III	-	↑ 100±20
[M+4H]⁺⁴	1.4718	547	I, II, III	-	-