Al- Mofti BW, Al- Azrak A. Spectrophotometric Determination of Ni+2 by 3- ((2- Hydroxyphenyl) imino) indolin- 2- one. JNSLAS [Internet]. 2021 Jun. 28 [cited 2025 Dec. 20];5(2):100-91. Available from: https://ajsrp.ojsexpert.com/index.php/jnslas/article/view/3752