A colorimetric and ratiometric fluorescent probe with ultralow detection limit and high selectivity for phosgene sensing
作者:Peilian Liu、Na Liu、Cuiling Liu、Yongmei Jia、Liping Huang、Guohua Zhou、Chengpeng Li、Sheng Wang
DOI:10.1016/j.dyepig.2018.12.031
日期:2019.4
(<20 s), remarkable colorimetric and ratiometric signal, excellent selectivity for phosgene over other interference analytes such as nerve agent mimics, various acyl chlorides and analogues. The AC-6ED loaded TLC plate can serve as a highly selective tool for phosgene sensing in the gas phase below health risk concentrations in a fast, portable, visible, and highly sensitive manner.
光气是一种无色,剧毒的气体,对公众健康和安全构成严重威胁。基于分子内电荷转移(ICT)机理,开发了一种以蒽碳羧酰亚胺为荧光团,乙二胺基团为识别基团的比色和比例荧光探针(AC-6ED),用于光气中的光气检测。的AC-6ED陷阱光气分子通过分子内环化反应,得到的颜色和荧光发射变化。在AC-6ED具有低检测限(0.09 nM),快速响应(<20 s),出色的比色和比例信号,对光气的选择性,优于其他干扰分析物,例如神经毒剂模拟物,各种酰氯和类似物。的AC-6ED加载TLC板可以用作用于感测的光气在下面的健康风险的浓度在气相中快速,方便携带,可见的,且高灵敏度地高度选择性工具。