Pharmaceutical Analytical Chemistry: o Chromatographic methods (including HPLC, HPTLC, UPLC and LC-MS). o Spectrophotometric and spectrofluorimetric methods. o Multivariate analysis. o Studying drug stability in raw material and in their pharmaceutical preparations. o Analysis of drugs in raw materials, pharmaceutical formulations and biological fluids, whether in mixtures or in presence of metabolites, impurities or degradation products.