Publication detail

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.

Original Title

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

Type

conference paper

Language

English

Original Abstract

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).

Keywords

heavy metals; cadmium; lead; electrochemistry; automation; environment; soil; wastewater

Authors

NEJDL, L.; HÁBOVÁ, M.; KYNICKÝ, J.; POSPÍŠILOVÁ, Ľ.; KIZEK, R.

Released

24. 6. 2015

ISBN

978-619-7105-37-7

Book

International Multidisciplinary Scientific GeoConference-SGEM

ISBN

1314-2704

Periodical

International multidisciplinary geoconference SGEM

State

Republic of Bulgaria

Pages from

65

Pages to

71

Pages count

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"
}