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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Oxidation Mechanisms of Diflunisal on Glassy Carbon Electrode
 Tiribilli, Ch. ; Giannarelli, S. ; Sokolová, Romana ; Valášek, M.
The electrochemical oxidation of diflunisal in acetonitrile was studied on a glassy carbon electrode. Diflunisal yields one irreversible oxidation wave at 1.6 V (vs. Ag/AgCl/1M LiCl electrode). The oxidation mechanism depends on the basicity of the solvent. The study is based on cyclic voltammetry, electroanalytical methods and UV-Vis spectroelectrochemistry. The degradation products were determined by separation techniques (HPLC-DAD, GC-MS).
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Determination of phytohormones in genetically modified Nicotiana plants by differential pulse voltammetry
 Kocábová, Jana ; Sokolová, Romana ; Giannarelli, S.
The differential pulse voltammetry was used for the determination of the phytohormone indole-3-acetic acid (IAA) in plant samples using a glassy-carbon electrode. The limit of detection of the proposed method is 0,45 microg.ml-1. The electrochemical determination of IAA is selective and the concentration of IAA in sample of genetically modified plant Nicotiana langsdorfii was determined in the presence of other phytohormones as abscisic acid and some cytokinins.
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