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Table 5 Linearity of MET

From: Development and validation of stability-indicating RP-HPLC method for the simultaneous determination of ertugliflozin pidolate and metformin hydrochloride in bulk and tablets

Concentration [x] (μg/ml) Mean peak area* [y] (AU)
0 0
62.5 1,374,565
125 2,780,573
187.5 4,158,469
250 5,566,797
312.5 6,877,296
375 8,152,632
Linear regression equation (y = mx + c) y = 21,857x + 31,878
Slope (m) 21,857
Intercept (c) 31,878
Correlation coefficient (R2) 0.999
  1. *Average of three determinations