Publication detail

Amperometric Sensor for Detection of Chloride Ions

TRNKOVÁ, L. ADAM, V. HUBÁLEK, J. BABULA, P. KIZEK, R.

Original Title

Amperometric Sensor for Detection of Chloride Ions

Type

journal article - other

Language

English

Original Abstract

Chloride ion sensing is important in many fields such as clinical diagnosis, environmental monitoring and industrial applications. We have measured chloride ions at a carbon paste electrode (CPE) and at a CPE modified with solid AgNO3, a solution of AgNO3 and/or solid silver particles. Detection limits (3 S/N) for chloride ions were 100 uM, 100 uM and 10 uM for solid AgNO3, solution of AgNO3 and/or solid silver particles, respectively. The CPE modified with silver particles is the most sensitive to the presence chloride ions. After that we approached to the miniaturization of the whole electrochemical instrument. Measurements were carried out on miniaturized instrument consisting of a potentiostat with dimensions 35 x 166 x 125 mm, screen printed electrodes, a peristaltic pump and a PC with control software. Under the most suitable experimental conditions (Britton-Robinson buffer, pH 1.8 and working electrode potential 550 mV) we estimated the limit of detection (3 S/N) as 500 nM.

Keywords

Chloride Ions; Silver; Carbon Paste Electrode; Screen Printed Electrode; Voltammetry; Amperometry

Authors

TRNKOVÁ, L.; ADAM, V.; HUBÁLEK, J.; BABULA, P.; KIZEK, R.

RIV year

2008

Released

15. 9. 2008

Publisher

MDPI

Location

Basel

ISBN

1424-8220

Periodical

SENSORS

Year of study

2008

Number

8

State

Swiss Confederation

Pages from

5619

Pages to

5636

Pages count

18

URL

http://www.mdpi.com/1424-8220/8/9/5619

Full text in the Digital Library

http://hdl.handle.net/11012/70080

BibTex

@article{BUT47211,
  author="Libuše {Trnková} and Vojtěch {Adam} and Jaromír {Hubálek} and Petr {Babula} and René {Kizek}",
  title="Amperometric Sensor for Detection of Chloride Ions",
  journal="SENSORS",
  year="2008",
  volume="2008",
  number="8",
  pages="5619--5636",
  doi="10.3390/s8095619",
  issn="1424-8220",
  url="http://www.mdpi.com/1424-8220/8/9/5619"
}