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Reference type: Journal
Authors: Özkütük EB, Ugurag D, Ersöz A, Say R
Article Title: Determination of Clenbuterol by Multiwalled Carbon Nanotube Potentiometric Sensors.
Publication date: 2016
Journal: Analytical Letters
Volume: 49
Issue: (6)
Page numbers: 778-789.
DOI: 10.1080/00032719.2015.1079213

Abstract: Potentimetric sensors based on molecularly imprinted polymers are reported for the selective determination of clenbuterol. The work involved the modification of multiwalled carbon nanotubes, the modification of chitosan with diethylene triamine pentaacetic acid, the synthesis of the clenbuterol-imprinted polymer, and the preparation of potentiometric sensors using the clenbuterol-imprinted polymer. The effect of pH, response time, lifetime, selectivity, reusability, reproducibility, accuracy, and stability of the sensors were characterized. The optimum pH was 6.0 for the prepared poly(vinyl chloride) membrane and carbon paste electrodes. The limit of detection of the poly(vinyl chloride) membrane electrode was 0.49 x 10-8 mM, with the linear dynamic range from 1.0 x 10-5 to 1.0 x 10-9 mM. The response time for the membrane electrode was 2 min and the operational lifetime was 23 weeks. For the carbon paste electrode, the limit of detection was 0.91 x 10-8 mM, the linear dynamic range was from 1.0 x 10-4 to 1.0 x 10-9 mM, the response time was 1 min, and the operational lifetime was 24 weeks
Template and target information: clenbuterol
Author keywords: β-Agonists, carbon paste electrode, clenbuterol, Molecularly imprinted polymers, poly(vinyl chloride) membrane electrode, Potentiometry

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