. Author manuscript; available in PMC: 2015 Jun 1.

Published in final edited form as: Drug Test Anal. 2013 Sep 20;6(6):542–551. doi: 10.1002/dta.1534

Table 2.

Chromatographic data of 3,4-Methylenedioxyphenyl-2-butanamine hydrochloride and phenylpropanolamine on the LARIHC CF6-P column with different additive ratios. Mobile phase: 60ACN/40MeOH, UV detection at 254 nm, flow rate:1 ml/min

	Additive percentage (v/v) in the Mobile Phase		3,4-Methylenedioxyphenyl- 2-butanamine hydrochloride				Phenylpropanolamine
	% TEA	% AA	r_t1/min	r_t2/min	α	R_s	r_t1/min	r_t2/min	α	R_s
1	0.0	0.0	4.1	4.1	1.00	0.0	3.3	3.3	1.02	0.5
2	0.10	0.0	4.9	4.9	1.00	0.4	6.0	6.1	1.02	0.6
3	0.0	0.10	19.3	20.2	1.06	0.8	24.0	25.7	1.08	0.8
4	0.36	0.15	7.3	7.5	1.05	1.3	10.3	10.6	1.05	1.4
5	0.89	0.10	5.5	5.5	1.03	1.2	7.3	7.4	1.02	1.2
6	0.20	0.30	9.9	10.5	1.08	1.5	13.9	14.9	1.08	1.5