title: [Determination of total oestrogens in pregnancy urine: rapid and simple extraction of oestrogens by Sep-Pak C18 cartridges].
abstract: The new method of solid-liquid extraction of oestrogens from pregnancy urine with Sep-Pak C18 cartridges was compared to the approved method of extraction with Amberlite XAD-2 columns. At about equal costs the extraction by Sep-Pak cartridges turned out to be more economical with respect to time and work. The yield was higher by about 35% and the precision was slightly improved. On account of these results the hitherto applied method of extraction by Amberlite XAD-2 was replaced by the Sep-Pak C18 method within our routine analysis for oestrogen determination in pregnancy monitoring. The method proved to be good over one year; therefore it can be recommended generally.
mesh_terms: D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy
chemical_list: D004967:Estrogens
vernacular_title: Zur Bestimmung der Gesamtöstrogene im Schwangerenurin: Rasche und einifache Extraktion der Ostrogene mit Hilfe von Sep-Pak-C18-Kartuschen.