研究目的
Designing new sensors and establishing a harmless, facile, timesaving, highly selective and sensitive method for the determination of TNP in aqueous phase.
研究成果
Two sensors, L1 and L2, were designed and synthesized for the detection of TNP in water. They show low detection limit, fast and highly selective fluorescence response to TNP. These sensors were successfully applied for the determination of TNP in real water samples.
研究不足
Higher detection limit which restrict their far-ranging application.
1：Experimental Design and Method Selection:
Density functional theory (DFT) calculations were used to assist in designing sensors and explaining the detection mechanism. 1H NMR titration and UV-Vis absorption spectroscopy were used to study the fluorescence quenching mechanism.
2：Sample Selection and Data Sources:
All reagents and solvents for chemical synthesis were purchased from TCI (Shanghai) Development Co, Ltd.
3：List of Experimental Equipment and Materials:
UV-1000 spectrometer, F-7000 fluorescence spectrometer, Bruker AV 500 spectrometer, Agilent 6540 UHD Q-TOF mass spectrometer, FluoroMax-4, JEOL-JEM2000EX Transmission electron microscope.
4：Experimental Procedures and Operational Workflow:
Synthesis of compounds L1 and L2, optical studies, fluorescence and properties, sensing mechanism study, determination of detection limit, fluorescence intensity time response, effect of pH, TEM images, analytical application.
5：Data Analysis Methods:
Stern-Volmer equation for sensitivity evaluation.
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UV-1000 spectrometer
Recording UV spectra
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F-7000 fluorescence spectrometer
Recording fluorescence spectrum
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Bruker AV 500 spectrometer
Recording 1H NMR and 13C NMR
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Agilent 6540 UHD Q-TOF mass spectrometer
Obtaining high resolution mass spectra (HRMS)
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FluoroMax-4
Obtaining fluorescence lifetime decay curve of the sensors
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JEOL-JEM2000EX Transmission electron microscope
Recording TEM images
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