Spectrophotometric determination of copper(II), nickel(II), and cobalt(II) as complexes with sodium diethyldithiocarbamate in the anionic micellar media of dodecylsulfate salts

Authors
San Andrés Lledó, María PazUniversity of Alcalá Author; Marina Alegre, María LuisaUniversity of Alcalá Author; Vera López, María SoledadUniversity of Alcalá Author
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/21120
DOI: 10.1039/an9952000255
ISSN: 0003-2654
Publisher
Royal Society of Chemistry
Date
1995
Affiliation
Universidad de Alcalá. Departamento de Química Analítica, Química Física e Ingeniería Química. Unidad docente de Química Analítica e Ingeniería Química
Bibliographic citation
Analyst, 1995, v. 120, n. 2, p. 255-259
Keywords
Micelles
Spectrophotometry
Metal ions
Diethyldithiocarbamate
Description / Notes
Received January 17, 1994; Accepted April 18, 1994
Project
91 B/14 (Universidad de Alcalá)
92/27 (Universidad de Alcalá)
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Publisher's version
http://dx.doi.org/10.1039/an9952000255
Rights
© Royal Society of Chemistry, 1995
Access rights
info:eu-repo/semantics/openAccess
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Abstract
Copper(II), NiII and CoII were determined spectrophotometrically as their complexes with diethyldithiocarbamate (DDTC) in the presence of aqueous anionic micellar media of sodium and ammonium dodecylsulfate. The presence of micellar systems allows one to eliminate the previous solvent extraction step that is necessary for the determination of metal–DDTC complexes in the absence of micelles. This reduces the cost and toxicity of the method. The influence of anionic micelles on the analytical characteristics (sensitivity and detection limits) was studied. The proposed method was applied to the determination of CuII in industrial waste water and in nickel covered metallic samples, and the results were compared with those obtained by flame atomic absorption spectrometry.
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