Table 2.

Intra- and inter-day accuracy and precision of the developed method.

Concentration (μg/mL)	Intra-day (n = 6)		Inter-day (n = 6)
	Accuracy (REa, %)	Precision (RSDb, %)	Accuracy (RE, %)	Precision (RSD, %)
0.1	-2.02	1.89	1.78	1.90
1.0	-1.98	1.07	-1.32	2.06
10.0	-1.90	0.62	-0.77	1.91
50.0	-0.38	0.92	-0.13	0.96

^aRE, relative error.

^bRSD, relative standard deviation