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 8

Results of determination of GPZ in spiked urine sample.

Spiked concentration µg mL^−1	Found^a  ± SD	% Recovery ± RSD^b
150.23	155.46 ± 3.16	103.48 ± 1.01
200.22	209.24 ± 1.28	104.51 ± 1.02
250.32	258.12 ± 2.45	103.12 ± 0.98

 ^aMean value of five determinations.
^bRSD is relative standard deviation.