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Reference type: Journal
Authors: Li SH, Li JP, Lin QY, Wei XP
Article Title: A molecularly imprinted sensor based on an electrochemiluminescent membrane for ultratrace doxycycline determination.
Publication date: 2015
Journal: Analyst
Volume: 140
Issue: (13)
Page numbers: 4702-4707.
DOI: 10.1039/C5AN00416K

Abstract: A new molecularly imprinted sensor was developed based on an electroluminescent molecularly imprinted polymer (MIP) membrane and used for doxycycline determination. The MIP was prepared by electropolymerization of pyrogallol doped with alizarin red. An electrochemiluminescence (ECL) signal was produced by the oxidation of the poly-pyrogallol polymer and reaction with alizarin red. The luminescence intensity was enhanced by doxycycline molecules which were re-adsorbed in cavities in MIP due to the energy transfer of the doxycycline oxidized intermediate to alizarin red. The changes of ECL intensities were linear with the concentrations of doxycycline in the range of 2 x 10-10 to 5 x 10-8 mol L-1. The detection limit was 5.17 x 10-11 mol L-1. This method was utilized to determine doxycycline residuals in fish muscles with satisfactory results
Template and target information: doxycycline


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