Spectroscopy and Spectral Analysis, Volume. 29, Issue 2, 446(2009)
HInteraction of Cucurbit[8]urils with Ofloxacin,Fleroxacin, Gatifloxacin and Sparfloxacin
Interaction between cucurbit[8]urils and ofloxacin,fleroxacin,gatifloxacin and sparfloxacin was detected by UV and fluorometric analysis in details.The experimental results revealed that the acidity of the medium effected the interaction of the title systems.The cucurbit[8]urils could interact with ofloxacin,fleroxacin and gatifloxacin with a ratio of 1:1 and with sparfloxacin with a ratio of 2:1 when pH<8.0.Inclusion stability constants of the systems of Q[8] with the guests detected at different pH values were 103-104 L·moL-1,while for SPFX it was 1011 L2·mol-2.The results of the analysis of the four systems showed that the linear relation can reach 2 or 3 orders of magnitude and the limit of detection can be as low as 10-9-10-7 mol·L-1.
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TONG Ling, MU Lan, XUE Sai-feng, ZHU Qian-jiang, TAO Zhu, ZENG Xi. HInteraction of Cucurbit[8]urils with Ofloxacin,Fleroxacin, Gatifloxacin and Sparfloxacin[J]. Spectroscopy and Spectral Analysis, 2009, 29(2): 446
Received: Oct. 8, 2007
Accepted: --
Published Online: Dec. 9, 2009
The Author Email: Ling TONG (sci.lmou@gzu.edu.cn)