Research Article
Derivative Spectrophotometric Methods for the Analysis and Stability Studies of Colistin Sulphate
Table 1
Linearity data for the developed methods.
| Parameter | Zero-order | 1st derivative | 2nd derivative |
| | 280 nm | 298 nm | 318 nm | | 0.00027 ± 0.000 | 0.000005 ± 0.000 | 0.0089 ± 0.0008 | | 0.015 ± 0.089 | −0.0006 ± 0.0017 | −0.43 ± 2.7 | LOD | 335 IU/mL | 343 IU/mL | 239 IU/mL | LOQ | 1015 IU/mL | 1040 IU/mL | 725 IU/mL | | 0.998 | 0.998 | 0.999 |
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