Table 1.

System suitability results of the proposed method.

Parameters	Results	Required limits
RSD	8.60%	RSD < 10%
N	2225	N > 2000
T	1.12	T < 1.5
R	1.4	R > 1.0
α	1.15	α > 1.05
K′	3.41	K′ > 3.0

Each value is the mean of six determinations.

α = selectivity factor; K′ = capacity factor; N = numbers of theoretical plate; R = resolution; RSD = relative standard deviation; T = tailing factor.