Tyutlikova Margarita S. RussiaSaratovSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia rita_tjutlikova@mail.ru Author's articles The Solid-state and Planar Sensors for the Determination of Cefotaxime in Aqueous and Biological Fluids Transport Properties of Membranes on the Basis of Tetradecylammonium Associates with Complex Compounds Silver(I)-сefotaxime