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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