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.
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Correspondence: Nuray Şatıroğlu, Department of Chemistry, University of Hacettepe, 06532 Beytepe, Ankara, Turkey
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Şatıroğlu, N., Arpa, Ç. Cloud point extraction for the determination of trace copper in water samples by flame atomic absorption spectrometry. Microchim Acta 162, 107–112 (2008). https://doi.org/10.1007/s00604-007-0904-y
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DOI: https://doi.org/10.1007/s00604-007-0904-y