Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron
Joint Authors
Dimitrov, Atanas Nikolov
Racheva, Petya Vassileva
Gavazov, Kiril Blazhev
Lekova, Vanya Dimitrova
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-21
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Materials Science , Minerals
Civil Engineering
Abstract EN
Complex formation and liquid-liquid extraction were studied in a system containing cobalt(II), 4-(2-pyridylazo)resorcinol (PAR), 1,4-diphenyl-3-(phenylamino)-1H-1,2,4-triazole (Nitron, Nt), water, and chloroform.
The effect of some experimental parameters (pH, shaking time, concentration of PAR, and concentration of Nt) was systematically investigated, and the optimum conditions for cobalt extraction as an ion-association complex, (NtH+)[Co3+(PAR)2], were found.
The following key equilibrium constants were calculated: constant of association (Log β=4.77±0.06), constant of distribution (LogKD=1.34±0.01), and constant of extraction (LogKex=6.11±0.07).
Beer’s law was obeyed for Co concentrations up to 1.7 μg mL−1 with a molar absorptivity of 6.0×104 L mol−1 cm−1 at λmax=520 nm.
Some additional characteristics, such as limit of detection, limit of quantification, and Sandell’s sensitivity, were estimated as well.
American Psychological Association (APA)
Racheva, Petya Vassileva& Gavazov, Kiril Blazhev& Lekova, Vanya Dimitrova& Dimitrov, Atanas Nikolov. 2013. Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron. Journal of Materials،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-506377
Modern Language Association (MLA)
Racheva, Petya Vassileva…[et al.]. Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron. Journal of Materials No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-506377
American Medical Association (AMA)
Racheva, Petya Vassileva& Gavazov, Kiril Blazhev& Lekova, Vanya Dimitrova& Dimitrov, Atanas Nikolov. Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron. Journal of Materials. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-506377
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506377