The Characterization of Polysorbate.

This study focuses on the characterization of polysorbate.. The research employs high-performance liquid chromatography (HPLC) techniques to address analytical challenges in the pharmaceutical field. Polysorbates (PSs), including PS20 and PS80, are non-ionic surfactants widely used in the pharmaceutical industry to enhance drug solubility and stability. Despite their wide application, PSs are prone to degradation by either hydrolysis or oxidation in drug formulations during storage; therefore, a PS characterization method assessing protein products is needed... Research Background and Significance Polysorbates (PSs), particularly PS20 and PS80, are critical excipients used extensively in pharmaceutical formulations to enhance the solubility and stability of protein-based therapeutics and other drugs. These non-ionic surfactants serve to prevent protein aggregation and improve drug bioavailability. However, their chemical instability, driven by hydrolytic and oxidative degradation during storage and handling, poses significant challenges for formulation stability and efficacy. Characterizing polysorbate degradation products and assessing their overall quality is essential for ensuring drug product safety and performance. Despite their widespread usage, standardized analytical methods to comprehensively characterize PSs in complex biological matrices remain limited. This research addresses a significant gap by developing and validating a robust high-performance liquid chromatography (HPLC) method tailored to pharmaceutical applications, focusing on the detailed characterization of polysorbate species and their degradation profiles. Experimental Design and Methodology The study employs reversed-phase high-performance liquid chromatography (RP-HPLC) to achieve separation an