نبذة مختصرة : A voltammetric method has been developed for the determination of a mixture of 2−aminobenzoic acid and 2−hydroxybenzoic acid that both are present in the Sunagreen fortmulation used as a plants growth stimulator. After opzimization of the key experimental and instrumental conditions, linear sweep voltammetry mode was chosen to determine both main substances and combined with a boron-doped diamond electrode in the role of convenient working electrode. Specially, in this work, a new mathematical algorithm was proposed serving to evaluate the respective voltammetric current signals that had originally been nonlinear with concentration. Limits of detection (LODs) for 2-aminobenzoic acid and 2-hydroxybenzoic acid were estimated to be 5.24 mol L-1 and 7.0 mol L-1, resp. Finally, selected real samples were anaylyzed and the results obtained agreed well with the declared values. ; Byla navržena metoda pro stanovení směsi kyselin 2-aminobenzoové a 2-hydroxybenzoové v rostlinném stimulátoru Sunagreen. Po zjištění optimálních podmínek byla na analýzu obou kyselin aplikována lineární voltametrie (LSV) za použití borem dopované diamantové elektrody. Byly analyzovány vybrané reálné vzorky a získané výsledky byly v dobré shodě s deklarovanými hodnotami.
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