Ammonia sensing with fluoroionophores - A promising way to minimize interferences caused by volatile amines

被引：24

作者：

Mueller, Bernhard J. ^{[1
]}

Steinmann, Nicole ^{[1
]}

Borisov, Sergey M. ^{[1
]}

Klimant, Ingo ^{[1
]}

机构：

[1] Graz Univ Technol, Inst Analyt Chem & Food Chem, Stremayrgasse 9, A-8010 Graz, Austria

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 255卷

关键词：

Photoinduced electron transfer; Ammonia; Fluorescence; Optical sensor; Fluoroionophore; OPTICAL SENSORS; POLYMER MATRIX; SOL-GEL; GAS; FLUOROSENSORS;

D O I：

10.1016/j.snb.2017.08.209

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页码：1897 / 1901

页数：5

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