The ion pairing produces a coloured lipophilic ion pair, which can be extracted into an organic solvent for example chloroform along with a quantitative measurement from the colour extracted might be made spectrophotometrically. Such a assay is described in the BP for Clonidine Injection and Benzhexol Tablets. [Pg.317] A decide https://paxtonlvdjp.blogginaway.com/32777350/the-greatest-guide-to-cationic-surfactant-examples