Results of prion protein peptides analysis in gonadotropin preparations by LC-SRM.

For all products a single vial was used for measurements. For products with *, six vials were pooled in order to minimize protein material losses.
LC-SRM  =  liquid chromatography selected reaction monitoring; CV  =  coefficient of variation; u-hCG  =  urinary human chorionic gonadotropin; hMG  =  urinary human menopausal gonadotropin; hMG-HP  =  highly purified hMG; r-hCG  =  recombinant hCG; r-hFSH  =  recombinant human follicle-stimulating hormone; r-hLH  =  recombinant human luteinizing hormone.