Abstract：The charge transfer complex formed between pefloxacin mesylate (PM) as the donor and tetrachlorobenzoquinone (TCQ) as the acceptor has been studied by fluorimetry. Experiment shows that PM reacted with TCQ in methanol with light and the complex was formed. Its fluorimetric intensity was stronger than that of PM and the excitation and emission peaks of the complex were red shifted to 80 nm and 60 nm, respectively. A linear calibration graph was obtained over the PM concentration from 0.05 μmol·L-1 to 10 μmol·L-1 with the detection limit of 0.004 μmol·L-1 of PM. The proposed method and UV-Vis photometric method were both applied to determining the pefloxacin in the same capsules with satisfactory results.
Key words：Pefloxacin mesylate;Tetrachlorobenzoquinone;Fluorimetry;Charge transfer reaction
李桂芝，刘永明 . 甲磺酸培氟沙星荷移反应及荧光光谱性质研究 [J]. 光谱学与光谱分析, 2004, 24(05): 600-602.
LI Gui-zhi，LIU Yong-ming . Study on Fluorescence Characteristics of Pefloxacin Based on Charge Transfer Reaction . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(05): 600-602.
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