Anthroneamine based chromofluorogenic probes for Hg2+ detection in aqueous solution
作者:Ashwani Kumar、Subodh Kumar
DOI:10.1016/j.tetlet.2012.01.134
日期:2012.4
Anthroneamine derivatives 1–3 (H2O:DMSO; 9:1, HEPES buffer, pH 7.0 ± 0.1) undergo highly selective fluorescence quenching with Hg2+. The observed linear fluorescence intensity change allows the quantitative detection of Hg2+ between 200 nM/40 ppb—12 μM/2.4 ppm even in the presence of interfering metal ions viz. Na+, K+, Mg2+, Ca2+, Ba2+, Cr3+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Ag+, Cd2+, Pb2+. Probes 1–3
Anthroneamine衍生物1 - 3(H 2 ○:DMSO; 9:1,HEPES缓冲液,pH 7.0±0.1)经历高选择性荧光淬灭与汞2+。即使在存在干扰金属离子的情况下,观察到的线性荧光强度变化也允许定量检测200 nM / 40 ppb-12μM/ 2.4 ppm之间的Hg 2+。Na +,K +,Mg 2 +,Ca 2 +,Ba 2 +,Cr 3+,Fe 2 +,Co 2 +,Ni 2 +,Cu 2 +,Zn 2 +,Ag +,Cd 2+,Pb 2+。探针1 - 3和它们的汞2+复合物也显示出它们的实际应用性的宽的pH电阻。