Coupling Cloud Point Extraction to Instrumental Detection Systems

M. FERNANDA SILVA, E. SOLEDAD CERUTTI, LUIS D. MARTINEZ

Microchimica Acta

Springer

Año: 2006 vol. 155 p. 349 - 364

1436-5073

The purpose of this article is to review and evaluate the cloud point extraction of metals and its coupling to different contemporary instrumental methods of analysis. This review covers a selection of the literature published on this topic over the period mainly between 1997 and September 2005 (consisting of 50 publications). The current state-of-the-art of CPE for metals and metal chelates is presented with especial emphasis on the hyphenation of this interesting extraction/preconcentration approach mediated by surfactants to spectrophotometry, atomic spectroscopy and separation techniques. We present contemporary CPE developments concerning metal speciation and determination and their applications to different environmental, clinical, geological and food samples. Strategies for method development as well as future perspectives are also covered.