Review of the Application of Raman Spectroscopy in Qualitative and Quantitative Analysis of Drug Polymorphism

Abstract: Drug polymorphism is an important factor affecting the drugs quality and clinical effica-cy. Therefore, great attention should be paid to the crystal analysis of drugs with their researching and evaluating part. With the booming development of Raman spectroscopy in recent years, more and more crystal analysis investigations were based on vibrational spectroscopy. This review main-ly discussed the qualitative and quantitative analysis of active pharmaceutical ingredients (API) and pharmaceutical preparation with Raman spectroscopy. On basis of the determination of the vibra-tion mode of drug molecules and the analysis of their chemical structure, this method had the ad-vantages of universal, non-destructive, fast determination, low samples and cost, etc. This review provides theoretical and technical support for crystal structure, which are worth popularizing. It is expected that it will be helpful to relevant government management institutions, pharmaceutical sci-entific research institutions and pharmaceutical manufacturers.