S/N ratio (Peak to Peak basis)

S. No

Name of the Impurity

Linearity Range (ppm)

Correlation coefficient (R²)

LOQ (0.25 ppm)

LOD (0.05 ppm)

1

Carboxy phenyl boronic acid

0.05 - 5

0.9974

26.8

7.4

2

Methyl phenyl boronic acid

0.05 - 5

0.9915

150.6

43.4