Validation and Application of Screen-Printed Microchip for Potentiometric Determination of Metformin Hydrochloride in Tablet Dosage Form

Table 2

MET intra and interday assay precision data (n = 3).

Component	Theoretical concentration (mol L^−1)	Measured conc. (mol L^−1), RSD (%)
		Intra-day	Inter-day
MET	0.0002	0.000205 (3.45)	0.000209 (3.73)
	0.002	0.00206 (1.41)	0.00209 (3.06)
	0.02	0.0202 (1.78)	0.0206 (1.17)