“…The preservatives used in pharmaceuticals are strictly controlled by the respective regulatory organizations, preferring specific test methods for preservatives. There have been several methods published for the determination of the sorbic acid content in pharmaceutical and food preparations using different analytical techniques such as iodometric titration [17], polarimetry [18], UV-vis spectrometry [19][20][21][22], thinlayer chromatography [23], liquid chromatography [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39], gas chromatography [40][41][42][43][44][45][46][47][48][49] and capillary electrophoresis [50][51][52][53][54][55]. For the investigation of the degradation products in the past, the analytical techniques used were: UV spectroscopy and thin-layer chromatography (TLC).…”