3.2.5 robustness
the method was found to be robust ,although small deliberate changes in method conditions did have a negligible effect on the chromatographic behavior of the solute . the results indicate that changing the detector wavelength had no large effect on the chromatographic behavior diazepam hydrochloride. even a small change of mobile phase composition did not cause a notable changes in the peak area of the used drug for this method. the results were presented in tables 5 and 6