Behavior of the guanosine monophosphate modified boron-doped diamond electrode in the presence of the pesticide alachlor
Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
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Abstract: Alachlor (ALA) has been widely used in agriculture and may act as a carcinogen and an environmental estrogen. The present work deals with chemical modification of boron-doped diamond electrode (BDDE) by guanosine monophosphate (GMP) and its study in the presence of ALA. Cyclic voltammetry and electrochemical impedimetry in the presence of the redox indicator 1×10-3 mol/L [Fe(CN)6]3-/4- together with differential pulse voltammetry of the nucleotide base were explored to test effects of GMP immobilization time, the pesticide concentrations and incubation time in the pesticide solution). It was found that GMP layer on the BDDE surface is distorted after incubation in the ALA solution.
Keywords: boron-doped diamond electrode, chemically modified electrode, guanosine monophosphate, DNA, alachlor
Full paper in Portable Document Format: acs_0227.pdf
Acta Chimica Slovaca, Vol. 8, No. 2, 2015, pp. 172—177, DOI: 10.1515/acs-2015-0029