A tryptophan-containing fluoroionophore sensor with high sensitivity to and selectivity for lead ion in water
作者:Li-Jun Ma、Yi-Fu Liu、Yuqing Wu
DOI:10.1039/b604623a
日期:——
We report herein a fluoroionophore sensor derivated from tryptophan that shows highsensitivity (detection limit up to 0.15 microM) and specific selectivity for lead ion (Pb2+) over Ca2+, Cd2+, Co2+, Cr3+, Cu2+, K+, Mg2+, Na+, Fe2+, Mn2+, Ni2+ and Zn2+ in aqueous solution.
Wonderful gels: A trihybridgel was prepared by incorporating graphene oxide and in situ synthesized gold nanoparticles (AuNPs) into an amino‐acid‐based native gel matrix (see pict). The morphology of this system indicates the presence of three distinctly different nanostructures: nanofibers, nanosheets, and nanoparticles. The catalytic efficiency of this trihybridsystem is enhanced relative to that