A sensitive spectrophotometer method for the determination of 4-aminoantipyrine as a Schiff base complicated with Cr (III), Ni (II) &Cu (II) transition elements and its preparation. مجلة ديالى للبحوث الانسانية, Iraq, v. 1, n. 32, 2022. DOI: 10.57592/djhr.v1i32.1461. Disponível em: https://djhr.uodiyala.edu.iq/index.php/DJHR2022/article/view/1461. Acesso em: 16 2025.