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- W2055561520 abstract "Three new 8-aminoquinoline-5-azo derivatives: 5-(3-fluo-4-chlorophenylazo)-8-aminoquinoline (FCPAQ), 5-(3-fluo-4-chlorophenylazo)-8-benzenesulfonamidoquinoline (FCPBSQ), 4,4'-bis(8-aminoquinoline-5-azo)-biphenyl (BAQABP) have been synthesized, and were found to be good fluorescence reagents for the determination of copper(II). In slightly acidic or basic medium, copper(II) reacts with FCPAQ, FCPBSQ or BAQABP to form a chelate, which exhibits an intensive fluorescence in ultraviolet region. The fluorescence intensity is proportional to the concentration of copper(II) over the range of 4.0-140, 1.0-200 and 3.0-150 mug l(-1) with the detection limits of 0.80, 0.20 and 0.50 mug l(-1) for the FCPAQ, FCPBSQ and BAQABP systems, respectively. The methods have been successfully applied to the determination of trace amount of copper in ore, alloy, water and hair samples." @default.
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- W2055561520 date "1998-09-28" @default.
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- W2055561520 title "Syntheses of three new derivatives of 8-aminoquinoline and its applications for fluorimetric determination of copper(II)" @default.
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- W2055561520 doi "https://doi.org/10.1016/s0039-9140(98)00161-1" @default.
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