caa a22 4500 463218582 CHVBK 20180405153205.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1134/S1061934807010145 doi (NATIONALLICENCE)springer-10.1134/S1061934807010145 Determination of steroids in biological samples by micellar electrokinetic chromatography [Elektronische Daten] [L. Kartsova, E. Bessonova] The possibility of determining eight adrenocorticotropic steroid hormones (cortisol, cortisone, corticosterone, 11-dehydrocorticosterone, 17-hydroxyprogesterone, 11-deoxycortisol, and progesterone) by micellar electrokinetic chromatography (MEKC) using urea as an organic additive to the working electrolyte (a 25 mM phosphoric acid solution and 10 mM sodium dodecyl sulfate) was demonstrated. The use of online preconcentration (stacking and sweeping) allowed us to lower the detection limit for steroids to ∼3 ng/mL. The total analysis time was 15 min. Pleiades Publishing, Ltd., 2007 Kartsova L. Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, 198904, Petrodvorets, Russia aut Bessonova E. Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, 198904, Petrodvorets, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/1(2007-01-01), 68-75 1061-9348 62:1<68 2007 62 10809 https://doi.org/10.1134/S1061934807010145 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807010145 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kartsova L. Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, 198904, Petrodvorets, Russia aut NATIONALLICENCE 700 1- Bessonova E. Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, 198904, Petrodvorets, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/1(2007-01-01), 68-75 1061-9348 62:1<68 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer