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Detail publikace
NEJDL, L. HÁBOVÁ, M. KYNICKÝ, J. POSPÍŠILOVÁ, Ľ. KIZEK, R.
Originální název
AUTOMATIC ELECTROCHEMICAL DETERMINATION OF SOIL CONTAMINATED BY HEAVY METAL IONS (Cd(II) AND Pb(II))
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Heavy metal pollution has become one of the most serious environmental problems of today. In this paper, we present low-cost and rapid production of amalgam electrodes, which were used for determination of Cd(II) and Pb(II). Difference pulse voltammetry was used with following settings: initial potential -1,1 V; end potential -0.2 V; step potential 0.005 V; modulation amplitude 0.025 V; modulation time 0.057 s and interval time 0.2 sec. Production and setting parameters were optimized step by step. Optimized parameters were implemented in a robotic analyser. Samples were measured in 24-well plates with a flat bottom. The electrochemical robotic device included three motorized units and a positioning system. First unit was rigidly connected to the vertical frame of the electrochemical robot; electrode holder was attached to it and enabled precise vertical (z) positioning of electrode holder (up and down). Microtiter plate was placed on horizontally (x/y) positioned board. The limit of detection (LOD) was calculated for the geometric surface of the working electrode 10.1 mm(2) that can be varied as required for analysis. Application of robotic device allowed us to analyze soil leachates with following LOD: Cd(II) = 80 and Pb(II) = 40 ng.ml(-1).
Klíčová slova
heavy metals; cadmium; lead; electrochemistry; automation; environment; soil; wastewater
Autoři
NEJDL, L.; HÁBOVÁ, M.; KYNICKÝ, J.; POSPÍŠILOVÁ, Ľ.; KIZEK, R.
Vydáno
24. 6. 2015
ISBN
978-619-7105-37-7
Kniha
International Multidisciplinary Scientific GeoConference-SGEM
ISSN
1314-2704
Periodikum
International multidisciplinary geoconference SGEM
Stát
Bulharská republika
Strany od
65
Strany do
71
Strany počet
7
BibTex
@inproceedings{BUT143550, author="Lukáš {Nejdl} and Magdalena {Hábová} and Jindřich {Kynický} and Ľubica {Pospíšilová} and René {Kizek}", title="AUTOMATIC ELECTROCHEMICAL DETERMINATION OF SOIL CONTAMINATED BY HEAVY METAL IONS (Cd(II) AND Pb(II))", booktitle="International Multidisciplinary Scientific GeoConference-SGEM", year="2015", journal="International multidisciplinary geoconference SGEM", pages="65--71", isbn="978-619-7105-37-7", issn="1314-2704" }