Table 1 Coded values for independent variables
From: QbD approach to HPLC method development and validation of ceftriaxone sodium
Factor | Coded values given factor | Levels | ||
|---|---|---|---|---|
− 1 | 0 | + 1 | ||
Acetonitrile to water | A | 25:75 | 70:30 | 35:65 |
pH of buffer | B | 6.5 | 5.5 | 7.5 |
From: QbD approach to HPLC method development and validation of ceftriaxone sodium
Factor | Coded values given factor | Levels | ||
|---|---|---|---|---|
− 1 | 0 | + 1 | ||
Acetonitrile to water | A | 25:75 | 70:30 | 35:65 |
pH of buffer | B | 6.5 | 5.5 | 7.5 |