Journal
TALANTA
Volume 59, Issue 4, Pages 767-773Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0039-9140(02)00617-3
Keywords
non-ionic surfactants; cloud point extraction; copper determination
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The possibility to use monocarboxylic acids and their mixtures with amines for copper concentrating by the way of micellar extraction at cloud point temperature, and later atomic absorption spectrometry (AAS) determination was investigated. Under the optimum conditions, preconcentration of 100 ml of water sample in the presence of 1% nonionic surfactant OP-10, 0.005 M capric acid and 0.01 M octylamine permitted the detection of 0.01 mug ml(-1) copper. The proposed method has been applied to the AAS determination of copper in water samples after cloud point extraction. (C) 2002 Elsevier Science B.V. All rights reserved.
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