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The supramolecular systems of 5-(p-hydroxyphenyl)-10,15,20-tris-(4-chlorophenyl)porphyrin (p-HTClPP) with β-cyclodextrin (β-CD), heptakis(2,3,6-tri-O-methyl)-β-CD (TM-β-CD), carboxymethyl-β-cyclodextrin (CM-β-CD) and sulfurbutylether-β-CD (SBE-β-CD) have been investigated by means of absorption, fluorescence and 1 H NMR spectroscopy. The formation of inclusion complexes has been confirmed...
Under controlling pH 3, R-(+)- and S-(-)-ofloxacin (OFLX) enantiomers can be well recognized and resolved by the synchronization-1st derivative fluorescence spectroscopic techniques, and the interference from urine blank also can be eliminated. The linear dynamic ranges are 0.36-2.16 (R), 0.36-2.89 and 3.16-31.6 μg/ml (S), respectively, for determining OFLX in urine samples. The limits of detection...
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