*3.4. Rivastigmine Quantification*

3.4.1. Development and Validation of a High-Performance Liquid Chromatography (HPLC) Method

The wavelength of the maximum absorption (237 nm) of rivastigmine was selected by spectroscopy analysis using a Jasco V-650 UV-Vis spectrophotometer. To obtain drug peaks of suitable resolution, chromatographic conditions were tested, namely the composition of the mobile phase, flow rate, and injection volume.
