Kuronboyev D. DETERMINATION OF COPPER (II) IONS USING 5-(O-AMINOPHENYL)-1,3,4-OXADIAZOLE-2-THIONE REAGENT BY ELECTROCHEMICAL METHODS. «JOURNAL OF MODERN CHEMISTRY» [Internet]. 2026 Apr. 28 [cited 2026 Apr. 30];1(1). Available from: http://journals.nuu.uz/index.php/modernchemistry/article/view/12119