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Reference type: Journal
Authors: Ávila M, Zougagh M, Escarpa A, Ríos A
Article Title: Supported liquid membrane-modified piezoelectric flow sensor with molecularly imprinted polymer for the determination of vanillin in food samples.
Publication date: 2007
Journal: Talanta
Volume: 72
Issue: (4)
Page numbers: 1362-1369.
DOI: 10.1016/j.talanta.2007.01.045
Alternative URL: http://www.sciencedirect.com/science/article/B6THP-4MY0MDF-4/2/aba8c998a5d50c28137e6b86efa7c18e

Abstract: An on-line supported liquid membrane-piezoelectric detection system, based on a molecularly imprinted polymer (SLM-QCM-MIP) manifold, has been developed and applied to the quantitative determination of vanillin in food samples. The analyte is extracted from a donor phase into the hydrophobic membrane, and then back extracted into a second aqueous phase used as the acceptor solution. The quantification of vanillin was performed using a quartz crystal microbalance modified with a molecularly imprinted polymer (MIP). The method shows a linear range between 5 and 65 μM, with a relative standard deviation of +/-4.8% (at 5 μM). The method was validated by analysing food samples and comparing the results with an SLM based on spectrophotometric quantification
Template and target information: vanillin
Author keywords: supported liquid membrane, molecularly imprinted polymer, piezoelectric sensor, Vanillin, Food samples


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