A functional applied material on recognition of metal ion zinc based on the double azine compound |
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| Authors: | Taibao Wei Guoyan Liang Xiaopeng Chen Jin Qi Qi Lin Youming Zhang Hong Yao |
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| Institution: | 1. Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education, Gansu 730070, PR China;2. Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China |
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| Abstract: | A colorimetric and fluorescent probe L has been designed and synthesized, which bearing the double azine moiety and showing a detection limit of 2.725 × 10?7 M towards Zn2+. Based on the basic recognition mechanism of ESIPT and CHEF effect, the L has high selectivity and sensitivity to only Zn2+ (not Fe3+, Hg2+, Ag+, Ca2+, Co2+, Ni2+, Cd2+, Pb2+, Cr3+, and Mg2+) within the physiological pH range (pH = 7.0–8.4) and showed a fluorescence switch. Moreover, this detection progress occured in the DMSO/H2O ～ HEPES buffer (80/20, v/v; pH 7.23) solution which can conveniently used on test strip. |
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| Keywords: | Fluorescent probe Double azine Fluorescence switch Test strip |
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