Novel coumarin-based pH sensitive fluorescent probes for the highly alkaline pH region
作者:T. Hien Nguyen、Tong Sun、Kenneth T.V. Grattan
DOI:10.1016/j.dyepig.2020.108312
日期:2020.6
coumarin-based pH indicators are reported. They show a fluorescence response to pH in the highly alkaline pH region with calculated pKa values in the range of 12.2–12.5. Covalent immobilization of the indicators to polymer supports provides novel pH-sensitive materials that possess excellent photostability. The materials are sensitive to pH in a similar range and can be applied in optical pH sensors for
报告了新型可聚合香豆素基pH指示剂的设计,合成和光谱性质。它们显示出在高碱性pH范围内对pH的荧光响应,计算出的p K a值在12.2–12.5范围内。将指示剂共价固定在聚合物载体上可提供具有出色光稳定性的新型pH敏感材料。该材料对相似范围内的pH敏感,可应用于光学pH传感器中,以测量各种碱性介质中的pH。