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- Title
Cloud point extraction for the determination of trace copper in water samples by flame atomic absorption spectrometry.
- Authors
Şatıroğlu, Nuray; Arpa, Çiğdem
- Abstract
Cloud point extraction has been used for preconcentration of trace amount of copper. The analyte was complexed with 1,2-dihydroxyanthraquinone-3-sulfonic acid sodium salt, and octylphenoxypolyethoxyethanol was added as a surfactant. The effects of experimental conditions such as pH, concentration of chelating agent and surfactant, equilibration temperature and time on cloud point extraction were studied. Under the optimum conditions, preconcentration of a 12 mL sample solution permitted the detection of 1.07 ng mL−1 of copper with an enrichment factor of 21. The method was applied to the determination of trace copper in water samples.
- Subjects
TRACE elements; ANALYTICAL chemistry; COPPER; COPPER content of drinking water; SODIUM salts; SURFACE active agents
- Publication
Microchimica Acta, 2008, Vol 162, Issue 1/2, p107
- ISSN
0026-3672
- Publication type
Article
- DOI
10.1007/s00604-007-0904-y