Use of Piezoelectric Sensors for the Determination of Oleic and Palmitic Acids in Vegetable Oils


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Piezoelectric sensors based on molecularly imprinted polymers (MIPs) for sensing oleic (MIP-Oleic) and palmitic (MIP-Palmitic) acids were tested in the analysis of vegetable oils. When creating the MIP sensors, electrodes were modified with the PM polyimide (dianhydride of 1,2,4,5-benzenetetracarboxylic acid and 4,4′-diaminodiphenyl oxide). Values of the imprinting factor and selectivity coefficients of the molecularly imprinted polymers for sensing fatty acids were compared. Chromatography mass spectrometry was used as a comparison method. The difference between the results of the determination of acids by using a piezoelectric sensor and by chromatography mass spectrometry does not exceed 10%. It is established that sensors modified with molecularly imprinted polymers are selective to the acid that served as a template for the polymer synthesis.

Sobre autores

O. Duvanova

Voronezh State University

Autor responsável pela correspondência
Email: duvanovaov@mail.ru
Rússia, Voronezh, 394018

I. Krivonosova

Voronezh State University

Email: duvanovaov@mail.ru
Rússia, Voronezh, 394018

A. Zyablov

Voronezh State University

Email: duvanovaov@mail.ru
Rússia, Voronezh, 394018

A. Falaleev

Voronezh State University

Email: duvanovaov@mail.ru
Rússia, Voronezh, 394018

V. Selemenev

Voronezh State University

Email: duvanovaov@mail.ru
Rússia, Voronezh, 394018

S. Sokolova

Voronezh State Agricultural University

Email: duvanovaov@mail.ru
Rússia, Voronezh, 394087

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