Study on a highly selective fluorescent chemosensor for Cu2+ and its direct sensing for proton based on 1,3,4-oxadiazole
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- 作者：Ling Zhua ; Caiying Gub ; Yi Hea ; ; Guang Wangb ; 1 ; wangg923@nenu.edu.cn" class="auth_mail
- 关键词：Oxadiazole ; N ; N-bis(2-pyridylmethyl)amine ; Fluorescence quenching ; Cu2+ ; pH probe
- 刊名：Journal of Luminescence
- 出版年：September 2014
- 年：2014
- 卷：153
- 期：Complete
- 页码：439-445
- 全文大小：2043 K
文摘
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A new fluorescent sensor based on oxadiazole and N,N-bis-(2-pyridylmethyl)amine was designed.
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The sensor displayed sensitive fluorescence response “on–off” to Cu2+ and “on–off–on” for protons.
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Fluorescence intensity showed good linear correlation with Cu2+ concentration from 5×10−7 M to 8×10−5 M.
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The high concentration of metal ions and usual anions did not influence the selectivity for Cu2+.
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The short response time of the sensor for Cu2+ (within 20 s) meets practical requirements.