Reshetnyak EA, Shevchenko VN, Lysak NM, Nikitina NA. Verification of the analytical signal additivity for the spectrophotometric determination of the total content of Cu(II), Co(II), Ni(II), Pb(II), Zn(II) using indicator films. Khark. Univ. Bull. Chem. Ser. [Internet]. 2018Sep.3 [cited 2024May17];0(30):67-8. Available from: https://periodicals.karazin.ua/chemistry/article/view/13965