Publication detail

Simultaneous Automatic Electrochemical Detection of Zinc, Cadmium, Copper and Lead Ions in Environmental Samples Using a Thin-Film Mercury Electrode and an Artificial Neural Network

KUDR, J. NGUYEN, H. GUMULEC, J. NEJDL, L. BLAŽKOVÁ, I. RUTTKAY-NEDECKÝ, B. HYNEK, D. KYNICKÝ, J. ADAM, V. KIZEK, R.

Original Title

Simultaneous Automatic Electrochemical Detection of Zinc, Cadmium, Copper and Lead Ions in Environmental Samples Using a Thin-Film Mercury Electrode and an Artificial Neural Network

Type

journal article in Web of Science

Language

English

Original Abstract

In this study a device for automatic electrochemical analysis was designed. A three electrodes detection system was attached to a positioning device, which enabled us to move the electrode system from one well to another of a microtitre plate. Disposable carbon tip electrodes were used for Cd(II), Cu(II) and Pb(II) ion quantification, while Zn(II) did not give signal in this electrode configuration. In order to detect all mentioned heavy metals simultaneously, thin-film mercury electrodes (TFME) were fabricated by electrodeposition of mercury on the surface of carbon tips. In comparison with bare electrodes the TMFEs had lower detection limits and better sensitivity. In addition to pure aqueous heavy metal solutions, the assay was also performed on mineralized rock samples, artificial blood plasma samples and samples of chicken embryo organs treated with cadmium. An artificial neural network was created to evaluate the concentrations of the mentioned heavy metals correctly in mixture samples and an excellent fit was observed (R2 = 0.9933).

Keywords

automation; electrochemical detection; artificial neuronal network; robotic device; metal ions; environmental analysis

Authors

KUDR, J.; NGUYEN, H.; GUMULEC, J.; NEJDL, L.; BLAŽKOVÁ, I.; RUTTKAY-NEDECKÝ, B.; HYNEK, D.; KYNICKÝ, J.; ADAM, V.; KIZEK, R.

RIV year

2015

Released

1. 1. 2015

Publisher

MDPI

ISBN

1424-8220

Periodical

SENSORS

Year of study

15

Number

1

State

Swiss Confederation

Pages from

592

Pages to

610

Pages count

19

URL

http://www.mdpi.com/1424-8220/15/1/592

Full text in the Digital Library

http://hdl.handle.net/11012/63712

BibTex

@article{BUT113366,
  author="Jiří {Kudr} and Hoai Viet {Nguyen} and Jaromír {Gumulec} and Lukáš {Nejdl} and Iva {Blažková} and Branislav {Ruttkay-Nedecký} and David {Hynek} and Jindřich {Kynický} and Vojtěch {Adam} and René {Kizek}",
  title="Simultaneous Automatic Electrochemical Detection of Zinc, Cadmium, Copper and Lead Ions in Environmental Samples Using a Thin-Film Mercury Electrode and an Artificial Neural Network",
  journal="SENSORS",
  year="2015",
  volume="15",
  number="1",
  pages="592--610",
  doi="10.3390/s150100592",
  issn="1424-8220",
  url="http://www.mdpi.com/1424-8220/15/1/592"
}