Lab-made Sensors Based on Boron-doped Diamond for Determination of Herbicide Linuron

0444485 - ÚFCH JH 2016 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Štěpánková, M. - Šelešovská, R. - Janíková, L. - Vojs, M. - Marton, M. - Behúl, M. - Nováková, Kateřina - Chýlková, J.
Lab-made Sensors Based on Boron-doped Diamond for Determination of Herbicide Linuron.
XXXV. Moderní elektrochemické metody. Sborník přednášek mezinárodní odborné konference. Ústí nad Labem: Srsenová Lenka - Best Servis, 2015 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 236-240. ISBN 978-80-905221-3-8.
[Moderní elektrochemické metody /35./. Jetřichovice (CZ), 18.05.2015-22.05.2015]
Institucionální podpora: RVO:61388955
Klíčová slova: Boron doped diamond electrode * sensors * voltammetry
Kód oboru RIV: CG - Elektrochemie

Voltammetric behaviour of substituted urea herbicide linuron (LIN) was investigated using two types of boron-doped diamond electrodes (BDDE): commercial BDDE and lab-made sensors based on boron-doped diamond (LM-BDDE). Various methods like cyclic voltammetry (CV), direct current voltammetry (DCV) and differential pulse voltammetry (DPV) were examined. It was found that LIN provides one oxidation peak using all of the tested working electrodes and the highest current response was recorded in the acidic media. Thus, Britton-Robinson (B-R) buffer of pH 2 was used as a supporting electrolyte. Parameters of DPV were optimized and the low limits of detection (LOD) were reached 1.41×10−7 M for commercial boron-doped diamond electrode and 8.81×10−9 M, respectively, which represents the lowest LOD obtained for lab-made boron-doped diamond electrodes.
Trvalý link: http://hdl.handle.net/11104/0246994