Extractive spectrophotometric determination of niobium(V) with promazine hydrochloride

An innovative approach in titanium determination based on incorporating 2-amino-4-((4-nitrophenyl)diazenyl)pyridine-3-ol in a PVC membrane

“…Notably, the achieved molar absorptivity surpasses that of previously reported methods. [63][64][65][66][67][68][69][70][71][72][73][74][75] underscoring the superior performance of our approach. Moreover, our procedure exhibits outstanding selectivity, characterized by impressively low limits of detection and quantication.…”