TY - GEN AU - Britz-McKibbin,Philip AU - Ichihashi,Tomoko AU - Tsubota,Kanami AU - Chen,David D Y AU - Terabe,Shigeru TI - Complementary on-line preconcentration strategies for steroids by capillary electrophoresis SN - 0021-9673 PY - 2004///0511 KW - Contraceptives, Oral KW - chemistry KW - Electrophoresis, Capillary KW - methods KW - Ethinyl Estradiol KW - analysis KW - Hydrogen-Ion Concentration KW - Steroids KW - isolation & purification N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/s0021-9673(03)00925-7 ER -