Ruzmetov, Uchkun, Aziza Matekeyeva, and Zulaykho Smanova. 2025. “HYBRID SPECTROSCOPIC STUDIES ON THE PRECONCENTRATION AND DETERMINATION OF HEAVY METAL IONS: SORPTION-ATOMIC ABSORPTION SPECTROSCOPY”. «JOURNAL OF MODERN CHEMISTRY» 1 (1). http://journals.nuu.uz/index.php/modernchemistry/article/view/10521.