Zdrojový dokument:Sensing in Electroanalysis. (K. Kalcher, R. Metelka, I. Švancara, K. Vytřas; Eds.). 2013/2014, Volume 8.
Abstrakt:
In this paper, new electrochemical determinations of selected biologically active compounds are described employing various types of carbon paste electrodes (CPE) in batch voltammetric methods (differential pulse voltammetry (DPV), direct current voltammetry (DCV), and cyclic voltammetry (CV)) and in HPLC with electrochemical detection (HPLC-ED) utilizing amperometric CPE sensors. The results for determination of cymoxanil, famoxadone, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, chlortoluron, carboxin,
triclosan, diafenthiuron, and propyl gallate are compared and discussed. Glassy carbon spherical
microparticles were used as carbonaceous component of the paste. The limits of detection of
some analytes were below 1·10-7 mol l-1 in both batch and flow methods. The newly developed
methods of determination were applied to model samples of drinking and river water, soils, and
practical samples of edible oil, toothpaste, soap, and toilet water.
