title: Determination of 5-trans-prostaglandin E2 in prostaglandin E2 via high performance liquid chromatography of their p-nitrophenacyl esters on a silver ion-loaded cation exchange resin.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004952:Esters; D007475:Ion Exchange Resins; D007536:Isomerism; D008722:Methods; D009578:Nitrobenzenes; D010648:Phenylacetates; D011458:Prostaglandins E / Q000032:analysis*; D012834:Silver
chemical_list: D004952:Esters; D007475:Ion Exchange Resins; D009578:Nitrobenzenes; D010648:Phenylacetates; D011458:Prostaglandins E; D012834:Silver