title: Improved liquid chromatographic determination of placental estriol in urine.
abstract: Placental estriol in urine can be determined, after enzymatic hydrolysis, by liquid chromatography. A single-step extraction technique results in rapid processing with minimal sample manipulation. Analytical recovery of estriol added to urine was 96 to 106%. Day-to-day precision (CV), established by 10 replicate analyses at a mean concentration of 15.9 mg of estriol per liter, was 3.7%.
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004964:Estriol / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy
chemical_list: D004964:Estriol