Detection of the optimal analytical conditions for the determination of the copper ion using potentiometric titration

Authors

  • Hajar Nasser
  • Faten Alaa Eddin
  • Aloras Dunia

Abstract

 

The objective of this study is to study some of the optimal analytical conditions for the determination of the Cu2+ ion using potentiometric titration method using the platinum electrode as a working electrode and the AgCL/Ag as a Reference electrode.

In this study, the technical conditions were studied (working Electrode type, Reference Electrode type, Direction of titration, delay time, Proportional band, Speed of stirring)

and the analytical conditions (pH value, time factor, quantity of solid KI added, electrolyte type and its concentration, detection limit) were studied using oxidation - reduction reactions as the method of iodide titration which applied successfully electrochemical for determine the Cu2+ ion.

   

The study showed that the typical Value of PH was (2.6 ± 0.1) and the time value before the titration was (5-7 min), the amount of potassium iodide was (0.4 g) and the study shows that the typical electrolyte was acetic acid and its concentration was (0.5-0.6 mol/l).

The detection limit value of the Cu2+ion was (9.38×10-5mol/l) when the proposed conditions is applied.

Some statistical coefficients like Recovery, standard deviation, Relative standard deviation show the accuracy and validity of the proposed method which were (98-101.56%)   (2.702×10-4 - 4.235×10-6), (2.265 - 4.170) respectively.

The potentiometric method was applied to the new conditions on water samples and compared with the results measured in the optical spectrophotometric method, which showed good applicability with high reliability.

Downloads

Published

2018-11-11

How to Cite

1.
Nasser H, Alaa Eddin F, Dunia A. Detection of the optimal analytical conditions for the determination of the copper ion using potentiometric titration. TUJ-BA [Internet]. 2018Nov.11 [cited 2024Nov.24];40(4). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4585

Issue

Vol. 40 No. 4 (2018): 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)