Detail publikace

AUTOMATIC ELECTROCHEMICAL DETERMINATION OF SOIL CONTAMINATED BY HEAVY METAL IONS (Cd(II) AND Pb(II))

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"
}