Zainab H. Khudhair (2022) “Spectrophotometric determination of vanadium (V) using an organic reagent [4-(6- nitro -2-benzothiazolylazo)pyrogallol]”, Mesopotamia Environmental Journal (mesop. environ. j) ISSN: 2410-2598, 4(1), pp. 42–51. Available at: https://mej.uobabylon.edu.iq/index.php/mej/article/view/66 (Accessed: 21 November 2024).