MATEKEYEVA, A. (2026) “DEVELOPMENT OF A HYBRID SORPTION–SPECTROSCOPIC SYSTEM BASED ON NITROSO-N-SALT IMMOBILIZED ON SILK FIBROIN FOR THE DETERMINATION OF Co(II) IONS”, «ACTA NUUz», 3(3.3), pp. 327–330. Available at: http://journals.nuu.uz/index.php/actanuuz/article/view/15019 (Accessed: 27 September 2026).