title: Analysis of N-(4-hydroxyphenyl)retinamide polymorphic forms by X-ray powder diffraction.
abstract: A quantitative X-ray diffraction method, with zinc oxide used as the internal standard, was developed for the analysis of polymorphic forms I and II of N-(4-hydroxyphenyl)retinamide. The standard curve relating peak height ratio to the percentage of form I was linear. The method was precise and accurate to within +/- 6%.
mesh_terms: D017313:Fenretinide; D011108:Polymers; D014212:Tretinoin / Q000031:analogs & derivatives* / Q000032:analysis; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000032:analysis
chemical_list: D011108:Polymers; D017313:Fenretinide; D014212:Tretinoin; D015034:Zinc Oxide