“…A rapid column chromatographic procedure was described for the separation and determination of five antibiotics (227). Ion exchange was used in the determination of homatropine methylbromide in syrups (39). Kinetic measurements were utilized for the assay of nitric esters of antianginal drugs (250) and to study the alkaline hydrolysis of benzocaine and two homologues in the presence of a nonionic surfactant (222).…”