A novel UV-visible chemosensor based on the 8-hydroxyquinoline derivative for copper ion detection
Analytical Methods Pub Date: 2015-04-13 DOI: 10.1039/C5AY00689A
Abstract
A novel UV-visible chemosensor, 4-methyl-2-((quinolinyl-8-amino)methyl)phenol (MQAMP), was designed and synthesized. The spectral properties of its free and Cu2+-coordinated forms were characterized. Under the optimized conditions, MQAMP showed selective and sensitive sensing for copper ions in an ethanol solution. The binding of Cu2+ to MQAMP caused a marked enhancement of the absorbance, and an about 100 nm red-shift of the maximum absorption wavelength. Other ions including Mo6+, Li+, Cs+, As3+, Ca2+, Na+, Cd2+, K+, Mg2+, Pt2+, Sr2+, Ba2+, Al3+, Cr6+, Be2+, Fe3+, Ni2+, F?, CH3COO?, SO42?, NO3?, Cl?, CO32?, and SO32? displayed no significant interference in this detection of Cu2+. The chemosensor exhibited a dynamic response range for Cu2+ from 1.0 × 10?6 to 1.0 × 10?5 mol L?1 with a detection limit of 1.1 × 10?7 mol L?1 (3σ).
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Journal Name：Analytical Methods
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CAS no.: 89640-58-4
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