Ultraviolet derivative spectrometry has been proposed for the analysis of s
albutamol and related impurities. The assay of salbutamol aldehyde, 5-formy
l-saligenin, and salbutamol ketone was performed in sodium hydroxide 0.1 mo
l/l solutions, using first and second derivative spectra. The method has be
en applied for the assay of related impurities of commercial samples of sal
butamol sulfate.