Selective detection of picric acid by a fluorescent ionic liquid chemosensor
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- 作者：Xin TianAuthor Vitae ; Xiujuan QiAuthor Vitae ; Xueyong LiuAuthor Vitae ; Qinghua Zhang ; qinghuazhang@caep.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Ionic liquids ; Explosives ; Fluorescence quenching ; Theoretical calculations ; Sensors
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：28 June 2016
- 年：2016
- 卷：229
- 期：Complete
- 页码：520-527
- 全文大小：2049 K
文摘
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A fluorescent ionic liquid with a dansylamide chromophore was synthesized.
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The ionic probe showed highly sensitive and selective detection of nitroaromatic explosives, especially for picric acid (PA).
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Theoretical calculations and NMR studies have demonstrated that the resonance energy transfer may play a cooperative role in determining the fluorescence quenching efficiency.
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The test paper results validated that the unprecedented efficiency of FIL 3 for on-site and instant detection of PA.