Table 1

Drug	Concentration [ng/band]	Intra-day		Inter-day
Drug	Concentration [ng/band]	*Area Mean ± SD**	%RSD	*Area Mean ± SD**	%RSD
BT	600	592.98±11.76	0.57	585.36±10.15	0.47
	900	910.91±22.04	0.84	913.72±16.06	0.52
	1200	1213.04±19.02	0.71	1313.09±9.28	0.23
TM	1000	2007.36±32.61	1.36	2003.10±33.99	1.36
	2000	3377.72±50.36	1.42	2980.14±39.22	1.15
	3000	3998.87±33.45	0.74	3951.11±63.83	1.46

* average of three estimations at each level

Table 1: Result of precision study.