一种“双波长激发型”香豆素pH荧光探针及其识别机理研究  

A Novel Fluorescent pH Probe based on the Coumarin Fluorophore and Dual-wavelength Excitation and Its Sensing Mechanism

作　　者：黄玲 刘洋 石磊 Huang Ling;Liu Yang;Shi Lei(Anan International Group Company,Foshan 528000;Guangdong Engineering Technical Research Center for Green Household Chemicals,Guangdong Industry Polytechnic,Guangzhou 510300,China)

机构地区：[1]佛山市安安美容保健品有限公司,广东佛山528000 [2]广东轻工职业技术学院广东省绿色日用化工工程技术研究中心,广东广州510300

出　　处：《广东化工》2022年第3期33-35,共3页Guangdong Chemical Industry

基　　金：广东省教育厅青年创新人才类项目(2017GkQNCX003);广州市科技计划项目(201904010250)资助。

摘　　要：本项工作以7-羟基香豆素荧光团为原料,构建了一种"双波长激发型"pH值荧光探针Cp H。该探针的p Ka值为6.06,其线性检测范围为4.0~7.4,而且还具有光稳定性强、灵敏度高、选择性高和可逆性好等优点。A novel fluorescent pH probe CpH based on the dual-wavelength excitation was constructed with the 7-hydroxycoumarin fluorophore. The pKa value of this probe was 6.06, and its linear detection range was 4.0~7.4. The CpH possessed many good optical properties, such as photostability, sensitivity, selectivity and reversibility.

关 键 词：荧光探针 PH值 香豆素 识别机理 分子内电荷转移 

分 类 号：O652[理学—分析化学]