Kosyreva Irina Vladimirovna RussiaSaratovSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia доценткандидат химических наукi_kosyreva@mail.ru Author's articles Test-Determination of Amoxicillin in Medications Visual Colorimetric and Colorimetric Determination of Cefuroxime Express determination of cephalexin