Development of a Quantitative Determination Method for Polysorbate 80 in Biologicals by Size-Exclusion High-Performance Liquid Chromatography

Aquantitative determination method for polysorbate 80 in biological medicinal preparations using size-exclusion chromatography with UV detection was developed. OASIS HLB solid-phase extraction cartridges were used to extract polysorbate 80 from formulations with high protein concentrations. The HPLC separation was performed using a TSKgel G2000SWX column in isocratic mode. The mobile phase was phosphate buffer (0.1 M) containing sodium sulfate (0.1 M) and sodium dodecyl sulfate (0.1%). The developed method could be used for quantitative determination of polysorbate 80 in biological medicinal products.