Use of Silver Solid Amalgam Electrode for Determination of Acaricide Amitraz

0444474 - ÚFCH JH 2016 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Nováková, Kateřina - Harvila, M. - Navrátil, Tomáš - Zima, J.
Use of Silver Solid Amalgam Electrode for Determination of Acaricide Amitraz.
XXXV. Moderní elektrochemické metody. Sborník přednášek mezinárodní odborné konference. Ústí nad Labem: Srsenová Lenka - Best Servis, 2015 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 161-165. ISBN 978-80-905221-3-8.
[Moderní elektrochemické metody /35./. Jetřichovice (CZ), 18.05.2015-22.05.2015]
Grant CEP: GA ČR(CZ) GAP208/12/1645
Institucionální podpora: RVO:61388955
Klíčová slova: pesticide * amitraz * amalgam
Kód oboru RIV: CG - Elektrochemie

The electrochemical behavior of amitraz was studied at polished (p-AgSAE) and mercury meniscus modified (m-AgSAE) silver solid amalgam electrodes. The reaction mechanism was investigated using direct current voltammetry (DCV) and elimination voltammetry with linear scan (EVLS). The optimum conditions for differential pulse adsorption stripping voltammetry (DPAdSV) determination of amitraz were found in Britton-Robinson (BR) buffer mixed with ethanol in a volume ration of 1:4. DPAdSV with optimized parameters was applied for determination of amitraz in analyzed solutions. The limits of detection were calculated as 8.9 nmol L-1 (tacc = 20 s) for m-AgSAE and 0.168 mol L-1 (tacc = 20 s) for p-AgSAE. The proposed method was successfully applied for determination of this compound in real sample solutions.
Trvalý link: http://hdl.handle.net/11104/0246981