Optimization of the conditions of sorption of molybdenum(VI), tungsten(VI), and vanadium(V) on modified silica gels with the use of bromopyrogallol red and surfactants

Sorption of molybdenum(VI), tungsten(VI), and vanadium(V) on amino silica gels in the presence of an anionic dye, bromopyrogallol red, and cationic surfactants fixed on the sorbent surface or present in solution was studied.