Research Article

Derivative Spectrophotometric Methods for the Analysis and Stability Studies of Colistin Sulphate

Table 4

, , and values for colistin degradation at pH 9 at different temperatures (5, 25, and 40°C).

Temp. (min−1) (0.693/) (0.105/)

5°C0.0008866.25131.25
25°C0.007987.7013.30
40°C0.03519.803.00