A fluorescence reagent for the highly selective recognition and separation of lead ion (II) from aqueous solutions.
A new fluorescence reagent, N,N-bi[4(1-pyrene)-butyroyl]-lysine (1) was synthesized. The new fluorescence sensor showed high sensitivity (detection limit up to 20.7 μg L(-1)) and specific selectivity for Pb(2+) over other metal ions examined in aqueous solutions. It could also be used to remove Pb(2+) from aqueous solutions by filtering the insoluble 1-Pb(2+) complex with sufficient reversibility.
School of Chemistry and Environment, South China Normal University, Shipai, Guangzhou 510631, PR China. mlj898021@yahoo.com.cn
Li-Jun
LJ
Ma
Yuhua
Y
Yan
Liping
L
Chen
Weiguang
W
Cao
Hongwei
H
Li
Liting
L
Yang
Yuqing
Y
Wu
D002413:Cations, Divalent / Q000032:analysis* / Q000302:isolation & purification; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D007854:Lead / Q000032:analysis* / Q000302:isolation & purification; D057230:Limit of Detection; D013050:Spectrometry, Fluorescence / Q000379:methods; D014867:Water / Q000032:analysis*
D002413:Cations, Divalent; D005456:Fluorescent Dyes; D014867:Water; D007854:Lead