Separation and preconcentration by a cloud point extraction procedure for determination of metals: an overview

• Published in: Analytical and bioanalytical chemistry Vol. 394; no. 3; pp. 759 - 782
• Main Authors: Ojeda, C. Bosch, Rojas, F. Sánchez
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2009; Springer
• Subjects: analysis; Analytic Sample Preparation Methods; Analytic Sample Preparation Methods - methods; Analytical Chemistry; Aqueous solutions; Biochemistry; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Clouds; Exact sciences and technology; Extraction; Food Science; Laboratory Medicine; liquid-liquid extraction; Mathematical analysis; Metal ions; metals; Metals - analysis; methods; Micelles; Monitoring/Environmental Analysis; nonionic surfactants; Review; Separation; Solutions; Surface-Active Agents; Surface-Active Agents - chemistry; Surfactants; Temperature; Water; Water - chemistry; Preconcentration; Cloud point extraction; Review; Applications; Metal ions; Liquid liquid extraction; Extraction process; Non ionic surfactant; Metal ion; Micelle; Metal; Chemical enrichment; Cloud point; Aqueous solution
• ISSN: 1618-2642; 1618-2650; 1618-2650
• DOI: 10.1007/s00216-009-2660-9

Recently, cloud point extraction (CPE) has been an attractive subject as an alternative to liquid–liquid extraction. The technique is based on the property of most non-ionic surfactants in aqueous solutions to form micelles and become turbid when heated to the cloud point temperature. This review covers a selection of the literature published on applications of CPE in determination of metal ions over the period between 2004 and 2008.