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Norfloxacin, 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid (NORH), reacts with aluminium (III) ion forming the strongly fluorescent complex [Al(HNOR)] 3+ , in slightly acidic medium. The complex shows maximum emission at 440 nm with excitation at 320 nm. The fluorescence intensity is enhanced upon addition of 0.5% sodium dodecylsulphate. Fluorescence...
A flow-injection analysis method is described for the determination of trace levels of aluminum using fluorescent detection of the Al-lumogallion complex. The method is very simple, requiring neither iron masking agents nor micelle forming compounds to improve sensitivity. The detection limit is 3.7 nM with linearity to 37 μM and a relative standard deviation at 1.1 μM of 0.8%. Naturally occurring...
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