Liquid-liquid extraction and flat sheet supported liquid membrane studies on Am(III) and Eu(III) separation using 2,6-bis(5,6-dipropyl-1,2,4-triazin-3-yl)pyridine as the extractant

► n-Pr-BTP was used for Am3+/Eu3+ separation. ► 70% n-dodecane + 30% 1-octanol was found to be suitable diluent. ► The SLM studies indicated about 85% Am3+ and 2-3% Eu3+ transport in 6 h. ► The stability of the reagent and the liquid membrane were not satisfactory.