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Table 7 Robustness of sitagliptin (n=6)

From: Novel stability-indicating RP-UPLC method for simultaneous estimation of sitagliptin and ertugliflozin in bulk and pharmaceutical formulations

Parameter

Peak area (mean±SD)

%RSD

Flow rate minus

1310994±4100.3

0.3

Flow rate plus

786560.8±2684.2

0.3

Mobile phase minus

962983.3±3338.3

0.3

Mobile phase plus

995949.2±9458.3

0.9

Thermal minus

988393.2±5545.8

0.6

Thermal plus

959826.3±1235

0.1

  1. n number of determinations, SD standard deviation, RSD relative standard deviation