Preconcentration of cadmium by MEUF in sodium dodecylsulphate solutions

A. Paulenová; P. Rajec; M. Ježíková

doi:10.1007/bf02387312

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 228: Issue 1-2

Preconcentration of cadmium by MEUF in sodium dodecylsulphate solutions

Authors:

A. Paulenová

A. Paulenová Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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P. Rajec

P. Rajec Comenius University Department of Nuclear Chemistry, Faculty of Natural Sciences 842 15 Bratislava Slovak Republic

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, and

M. Ježíková

M. Ježíková Research Institute of NPP Okružná 5 918 64 Trnava Slovak Republic

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Pages:: 119–122

Online Publication Date:: 12 Apr 2006

Publication Date:: 17 Feb 1998

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02387312

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Abstract

The ultrafiltration preconcentration of Cd²⁺ using micellar extraction with 8-hydroxyquinoline (8-HQ), solubilized in anionic micelles of sodium dodecylsulphate (SDS)) were studied. The n-butanol was used as a co-surfactant. Ultrafiltration yields (R, %) on cellulose acetate membranes (wet, 20000 MW-CO) under 400 kPa pressure were determined. Distribution ratios (D) of cadmium between bulk liquid phase and micellar pseudophase were estimated. The constants (app.) for the cadmium-sodium exchange on SDS micelles surface at pH values of 4.8 and 5.3 (3.36 and 3.86, respectively) were determined. It was found, that the values of ultrafiltration yields of the cadmium (at constant concentration of 8-HQ) are influenced not only by the pH and by the concentration values, but also by the ratio of the concentrations of the metal and the anionic surfactant.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)