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A uracil nitroso amine based colorimetric sensor for the detection of Cu2+ ions from aqueous environment and its practical applications

机译:基于尿嘧啶亚硝胺的比色传感器,用于检测水性环境中的Cu2 +离子及其实际应用

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摘要

A simple uracil nitroso amine based colorimetric chemosensor (UNA-1) has been synthesized and screened for its cation recognition ability. Sensor UNA-1 exhibited a high sensitivity and selectivity towards Cu2+ ions in aqueous medium in the presence of a wide range of other competing cations (Ag+, Al3+, Ba2+, Ca2+, Cd2+, Co2+, Cr3+, Cs+, Fe2+, Fe3+, Li+, Mg2+, Mn2+, Na+, Ni2+, Pb2+, Zn2+, Hg2+ and Sr2+). With Cu2+, the sensor UNA-1 gave a distinct color change from colorless to dark yellow by forming a complex of 1 : 1 stoichiometry. Furthermore, sensor UNA-1 was successfully utilized in the preparation of test strips and supported silica for the detection of Cu2+ ions from aqueous environment.
机译:合成了一种简单的基于尿嘧啶亚硝胺的比色化学传感器(UNA-1),并对其阳离子识别能力进行了筛选。在广泛存在其他竞争性阳离子(Ag +,Al3 +,Ba2 +,Ca2 +,Cd2 +,Co2 +,Cr3 +,Cs +,Fe2 +,Fe3 +,Li +, Mg2 +,Mn2 +,Na +,Ni2 +,Pb2 +,Zn2 +,Hg2 +和Sr2 +)。使用Cu2 +时,传感器UNA-1通过形成化学计量比为1:1的复合物,使颜色从无色变为深黄色。此外,传感器UNA-1被成功地用于测试条和支撑二氧化硅的制备中,用于检测水性环境中的Cu2 +离子。

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