Crown ether-containing Schiff base as a highly efficient “turn-on” fluorescent sensor for determination and separation of Zn2+ in water
Abstract
A highly efficient Zn2+ “turn-on” fluorescent sensor, [4′-benzo-15-crown-5]NCH–(2-OH–C6H4) (HL), has been synthesized. In the presence of Zn(NO3)2, HL displays high selectivity and sensitive enhancement of fluorescence intensity in