Table 1 Summary for the optimization of variables affecting the reaction of CIN with NQS reagent employed in the development of the proposed spectrophotometric method
Variable | Studied range | Optimum |
|---|---|---|
NQS concentration (%, w/v) | 0.1 - 0.9 | 0.5 |
pH | 6 - 10 | 8.5 |
Temperature (°C) | 25 - 60 | 25 |
Time (min) | 5 - 35 | 10 |
Diluting solvent | Differenta | Water |
Measuring wavelength (nm) | 400 - 600 | 490 |