Table 1 Regression and analytical parameters of the proposed methods for the determination of Saxagliptin, Metformin, and Melamine

Calibration range (μg/band)

0.2–10

0.2–10

0.02–1

Slope

0.0913

0.1789

1.0274

Intercept

0.0532

0.2126

0.061

Correlation coefficient (r)

0.999

0.9997

0.9999

Accuracy (mean %recovery)

100.59

101.53

99.77

Repeatability^a (%SD)

0.401

0.64

1.39

Intermediate precision^b (%SD)

1.27

1.44

1.76

LOD^c (μg/ mL)

0.05

0.05

0.005

LOQ^c (μg /mL)

0.17

0.16

0.018

Calibration range (μg/mL)

(0.5–100)

(0.5–70)

(0.2–10)

Slope

0.0772

0.0145

0.7104

Intercept

4.6175

0.5828

1.2600

Correlation coefficient (r)

0.9999

0.9998

0.9999

Accuracy (mean %recovery)

101.28

101.36

100.26

Repeatability^a (%SD)

1.39

1.36

0.89

Intermediate precision^b (%SD)

1.48

1.62

1.13

LOD^c (μg/mL)

0.15

0.15

0.06

LOQ^c (μg/mL)

0.46

0.43

0.18