title: Polysorbate 80 UV/vis spectral and chromatographic characteristics--defining boundary conditions for use of the surfactant in dissolution analysis.
abstract: Polysorbate 80 is used in the pharmaceutical industry as an additive to enhance the solubility of non-polar compounds in formulation design and during dissolution analysis. In this paper we present the spectroscopic and chromatographic characteristics for a series of commercially available sources of this non-ionic surfactant. The large UV/vis absorbance and broad chromatographic elution of Polysorbate 80 often makes it difficult to accurately quantitate pharmaceutically active compounds in solutions where the surfactant is present. Boundary conditions have been established where analytical interferences can be avoided in spectrophotometric analysis by choice of analysis wavelength and solution concentrations. Chromatographic method development is also presented enabling the removal of Polysorbate interference in instances where spectroscopic interference is too great.
authors.affiliation: Merck Research Laboratories, Pharmaceutical Analysis and Control, West Point, PA 19486, United States. peter_wuelfing@merck.com
authors.forename: W Peter
authors.initials: WP
authors.lastname: Wuelfing
authors.forename: Kathryn
authors.initials: K
authors.lastname: Kosuda
authors.forename: Allen C
authors.initials: AC
authors.lastname: Templeton
authors.forename: Amy
authors.initials: A
authors.lastname: Harman
authors.forename: Mark D
authors.initials: MD
authors.lastname: Mowery
authors.forename: Robert A
authors.initials: RA
authors.lastname: Reed
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D011136:Polysorbates / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D011136:Polysorbates; D013501:Surface-Active Agents