Britz-McKibbin, Philip Complementary on-line preconcentration strategies for steroids by capillary electrophoresis. [electronic resource] - Journal of chromatography. A Sep 2003 - 65-76 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0021-9673 Standard No.: 10.1016/s0021-9673(03)00925-7 doi Subjects--Topical Terms: Contraceptives, Oral--chemistryElectrophoresis, Capillary--methodsEthinyl Estradiol--analysisHydrogen-Ion ConcentrationSteroids--isolation & purification