Quality by Design Approach for the Development and Validation of Glipizide, an Antidiabetic Drug, by RP-UPLC with Application to Formulated Forms and Urine

Table 4

Results of accuracy study (𝑛=7).

Concentration of GPZ injected, µg mL^−1	Intraday		Interday
	Concentration of GPZ found, µg mL^−1	RE^a, %	Concentration of GPZ found, µg mL^−1	RE, %
100	101.34	1.34	99.47	0.53
200	203.12	1.56	202.21	1.11
300	302.12	0.71	303.45	1.15

 ^aRelative error.