Wang Q-S, Zhai Q-Z. Colour Reaction of Dibromo-p-chloro-chlorophosphonazo with Magnesium(II) and Analytical Application. ajc [Internet]. 2013 Feb. 5 [cited 2024 Nov. 22];25(7):4091-3. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_7_123