Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 255, Issue -, Pages 1897-1901Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.08.209
Keywords
Photoinduced electron transfer; Ammonia; Fluorescence; Optical sensor; Fluoroionophore
Funding
- European Union FP7 Project SCHeMA [614002]
- European Union FP7 Project SenseOcean [614141]
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A novel sensing concept for the selective detection of ammonia over amines is introduced. For the first time, the reversible fluorescence-based NH3 sensor makes use of an ammonium-sensitive fluoroionophore instead of commonly utilized pH indicators. NH3 diffuses into the sensor where a buffered internal electrolyte generates the corresponding ammonium ion, which is then detected by an ion selective NIR fluoroionophore. (C) 2017 Published by Elsevier B.V.
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