文献类型：期刊文献

英文题名：A fluorescent ratiometric sensor based on covalent immobilization of chalcone derivative and porphyrin Zinc for detecting water content in organic solvents

作者：Wang, Xiao-Yu[1,2];Niu, Cheng-Gang[1];Hu, Liu-Yin[1];Huang, Da-Wei[3];Wu, Sheng-Quan[1];Zhang, Lei[1];Wen, Xiao-Ju[1];Zeng, Guang-Ming[1]

第一作者：Wang, Xiao-Yu;王晓钰

通讯作者：Niu, CG[1]

机构：[1]Hunan Univ, Minist Educ, Coll Environm Sci & Engn, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China;[2]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China;[3]South China Inst Environm Sci, Minist Environm Protect PRC, Guangzhou 510655, Guangdong, Peoples R China

第一机构：Hunan Univ, Minist Educ, Coll Environm Sci & Engn, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China

通讯机构：[1]corresponding author), Hunan Univ, Minist Educ, Coll Environm Sci & Engn, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.

年份：2017

卷号：243

起止页码：1046-1056

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20165203192040);Scopus(收录号：2-s2.0-85007162509);WOS:【SCI-EXPANDED(收录号:WOS:000395969100131)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51541801, 51521006 and 21507034), the Natural Science Foundation of Guangdong Province, China (2016A030310022), and the Pearl River S&T Nova Program of Guangzhou.

语种：英文

外文关键词：Fluorescence ratiometric sensor; Water content; Chalcone derivative; Porphyrin Zinc; Covalent immobilization

摘要：This paper describes a fluorescent ratiometric sensor for water content determination in organic solvents. Two different compounds, 4'-N,N-dimethylamino-4-methylacryloylamino chalcone (DMC) and 5, 10, 15, 20-tetra-(4-methylacryloylaminophenyl)porphyrin Zinc (TMAPPZn), were synthesized as indicators for fluorescence ratiometric water sensing. DMC is a fluorescence indicator with charge donor parts and acceptor parts and sensitive to solvent polarity and water content. The fluorescence intensity of TMAPPZn is insensitive to the water content lower than 10% (v/v) water content and employed as the reference indicator. The use of TMAPPZn as a reference indicator resulted in a more stable signal due to minimizing the effects of fluctuations of light intensity, fluorophore bleaching, background signal, and so forth. DMC and TMAPPZn were photo-copolymerized on the silanized glass surface to prevent leakage of the fluorescence indicators. Three organic solutions (ethanol, acetone, and tetrahydrofuran) were used to verify the performances of the proposed sensor, and the sensor exhibited a good linearity in the range 0-10% (v/v) water content with detection limits of 0.0097%, 0.011%, and 0.017% for ethanol, acetone, and tetrahydrofuran, respectively. The ratiometric sensor was characteristic of satisfactory reproducibility, reversibility, short response time. The sensing membrane was found to have a lifetime of two month. We carried out preliminary spiking experiments on the actual samples, and the spiked recoveries were of 99.2-102.0%. (C) 2016 Elsevier B.V. All rights reserved.