Begum, Farzana, M. Haleem Khan, M. Aslam Mirza, Muhammad Aziz Choudhary, and Robert J. Baker. “Synergic Extraction of Europium(III) With 1 M Mixture of Di-N-Butylsulfoxide and Bis(2,4,4-Trimethylpentyl)phosphinic Acid in Chloroform and Its Subsequent Determination by Using Arsenazo(III) As Chromogenic Reagent”. Asian Journal of Chemistry 27, no. 10 (June 22, 2015): 3609–3615. Accessed December 21, 2024. https://asianpubs.org/index.php/ajchem/article/view/27_10_19.