Cloud point extraction for the determination of trace copper in water samples by flame atomic absorption spectrometry


ŞATIROĞLU N. , Arpa Ç.

MICROCHIMICA ACTA, cilt.162, ss.107-112, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 162
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s00604-007-0904-y
  • Dergi Adı: MICROCHIMICA ACTA
  • Sayfa Sayıları: ss.107-112

Özet

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.