1,3,5-Triphenylbenzene fluorophore as a selective Cu<sup>2+</sup>sensor in aqueous media
作者:Sakan Sirilaksanapong、Mongkol Sukwattanasinitt、Paitoon Rashatasakhon
DOI:10.1039/c1cc16148b
日期:——
Three water-soluble fluorophores are synthesized from 1,3,5-tris-(4′-iodophenyl)benzene. The compound with salicylate groups exhibits a selective fluorescent quenching by Cu2+via a static quenching mechanism. The addition of Triton X-100 improves the quantum efficiency of the fluorophore as well as the detection limit for Cu2+ from 6.49 to 0.19 ppb.
三种水溶性荧光团由1,3,5-三(4'-碘苯基)苯合成。其中带有水杨酸基团的化合物通过静态淬灭机制对Cu²⁺表现出选择性荧光淬灭。加入Triton X-100不仅提高了荧光团的量子效率,还将Cu²⁺的检测限从6.49 ppb降低到了0.19 ppb。