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Reference type: Journal
Authors: Moreira FTC, Freitas VAP, Sales MGF
Article Title: Biomimetic norfloxacin sensors made of molecularly-imprinted materials for potentiometric transduction.
Publication date: 2011
Journal: Microchimica Acta
Volume: 172
Issue: (1)
Page numbers: 15-23.
DOI: 10.1007/s00604-010-0464-4
Alternative URL: http://www.springerlink.com/content/143155h2x2mt3738/

Abstract: A biomimetic sensor for norfloxacin is presented that is based on host-guest interactions and potentiometric transduction. The artificial host was imprinted into polymers made from methacrylic acid and/or 2-vinyl pyridine. The resulting particles were entrapped in a plasticized poly(vinyl chloride) (PVC) matrix. The sensors exhibit near-Nernstian response in steady state evaluations, and detection limits range from 0.40 to 1.0μg mL-1, respectively, and are independent of pH values at between 2 and 6, and 8 and 11, respectively. Good selectivity was observed over several potential interferents. In flowing media, the sensors exhibit fast response, a sensitivity of 68.2 mV per decade, a linear range from 79 μM to 2.5 mM, a detection limit of 20 μg mL-1, and a stable baseline. The sensors were successfully applied to field monitoring of norfloxacin in fish samples, biological samples, and pharmaceutical products
Template and target information: norfloxacin
Author keywords: norfloxacin, Molecularly-imprinted sensors, Potentiometry, FIA, Fish


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