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. DJHR [انترنت]. 17 أغسطس، 2022 [وثق 16 يوليو، 2025];1(32). موجود في: https://djhr.uodiyala.edu.iq/index.php/DJHR2022/article/view/1461