Manufacturing of selective electrode using modified graphite paste to determine cadmium ion in aqueous solution and studing its potential properties

Authors

  • Hajar Nasser
  • Elham Baddour
  • Mossab Khalil

Abstract

This study deals with manufacturing of electrochemical sensor (electrode) to determine cadmium (II) in aqueous solution using a (3-(4-nitro phenyl azo)-pentane-2,4-dion (LP)) dye complex with cadmium ions as electrochemical effective substance by mix it with graphite powder using paraffin oil as plasticizer. LP dye was prepared and its properties were studied. The identity of the complex with Cd2+ was confirmed using the spectroscopy methods in the ultraviolet (UV) and infrared (IR) range. The optimal components of the graphite paste were studied to choose the best composition, in addition to potentiometric study of the mixing ratio between the graphite powder and the active substance in the studied ion concentration range (1×10-3-1×10-7)M and the relation between the mixing ratio and the linear slope and slope corresponding to each ratio (30:70%) and (40:60)% (an effective substance: graphite) characterized by a very good Nernstic response on a wide range of concentrations with a slope of 28 and 31 respectively. the effect of pH value on the respond time of the manufactured electrode was studied. The result showed stability of the potential in pH range (3. 5 – 7) at a response time of 30-40 sec. The potential selectivity coefficients of the proposed electrode were calculated using the Matched Potential Method (MPM). The proposed electrode was used successfully as an detector electrode in the potentiometric calibration of the cadmium nitrate solution with disodium salt solution of EDTA.

 

Downloads

Published

2019-11-07

How to Cite

1.
Nasser H, Baddour E, Khalil M. Manufacturing of selective electrode using modified graphite paste to determine cadmium ion in aqueous solution and studing its potential properties. TUJ-BA [Internet]. 2019Nov.7 [cited 2024Apr.19];41(5). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/9207

Issue

Vol. 41 No. 5 (2019): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)