期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 180, 期 -, 页码 2-7出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.10.031
关键词
Fluorene-thiophene; Turn-on; Methamphetamine; Sensor
资金
- National Nature Sciences Foundation of China [51003118, 61007066, 50973128, 60977067]
- Research Programs from the Ministry of Science and Technology of China [2009BAK64B03]
A fluorescence turn-on sensor for methamphetamine (MA) vapor sensing was realized. Two sensory materials, 9,9-dioctylfluorene-2,7-bisthiophene (FBT) and poly [(9,9-dioctylfuorenyl-2,7-diyl)-alt (3-hexylthiophene-2,5-diyl)] (PET), were synthesized and their fluorescence sensing potential towards MA has been demonstrated. Both materials show high sensitivity and selectivity to MA vapor in solid state. Upon exposure to the saturated vapor of MA, the fluorescence could be increased 6.4 and 4.65 folds for FBT and PET respectively and these changes could be readily distinguished by naked eyes. Taking a fluorescence intensity change as 1%, the detection limits of FBT and PET for MA vapor were estimated to be 1.9 ppm and 6.4 ppm. The sensing mechanism was proposed to arise from fluorescence enhancement induced by a thiophene-amine interaction. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据