Highly selective fluorescence turn-on chemosensor based on naphthalimide derivatives for detection of copper(II) ions
作者： Zhijun Chen , Limin Wang , Gang Zou , Jun Tang , Xiaofei Cai
DOI: 10.1016/J.SAA.2012.12.005
关键词: Ion 、 Detection limit 、 Turn (biochemistry) 、 Copper 、 Titration 、 Chemistry 、 Schiff base 、 Spectral line 、 Inorganic chemistry 、 Fluorescence 、 Photochemistry
摘要: Abstract A new fluorescent probe, DN-SB, was synthesized. DN-SB based on the naphthalimide derivatives and exhibited high selectivity sensitivity for Cu2+ ions. As a Cu2+-amplified its fluorescence spectrum showed 4.5-fold enhancement in intensity of signal at 519 nm binding with Cu2+. Based titration spectra job’s-plot, mode proposed. Fluorescence linear concentration cation range from 4 μM to 7 μM. also sensitive copper The detection limit calculated be 0.15 μM which indicated
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