Selective solid-phase extraction of Cu(II) using freshly precipitated lead diethyldithiocarbamate and its spectrophotometric determination

Cesur H.

CHEMICAL PAPERS, cilt.61, sa.5, ss.342-347, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 5
  • Basım Tarihi: 2007
  • Doi Numarası: 10.2478/s11696-007-0045-0
  • Dergi Adı: CHEMICAL PAPERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.342-347
  • Anahtar Kelimeler: solid-phase extraction, copper, diethyldithiocarbamate, spectrophotometry, ABSORPTION SPECTROMETRIC DETERMINATION, ATOMIC EMISSION-SPECTROMETRY, ALIZARIN-RED-S, MICROCRYSTALLINE NAPHTHALENE, TRACE AMOUNTS, PHARMACEUTICAL SAMPLES, POLYURETHANE FOAM, STANDARD ALLOYS, NATURAL-WATERS, SOIL SAMPLES
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

A new solid-phase extraction method has been developed for the selective extraction of Cu(II) in an aqueous system using freshly precipitated lead diethyldithiocarbamate (Pb(DDTC)(2)) as a reagent. The method is based on the quantitative replacement of Pb(II) ions in the solid Pb(DDTC)(2) phase by Cu(II) ions present in aqueous phase. The obtained solid Cu(DDTC)(2) phase was dissolved in chloroform and determined spectrophotometrically at 435 nm. Beer's law was obeyed over the concentration range of 0.2-5 mg dm(-3). The molar absorptivity and the Sandell's sensitivity coefficients of the solutions were 1.0689 x 10(4) dm(3) mol(-1) cm(-1) and 0.0060 mu g cm(-2), respectively. The optimum conditions for each parameter were experimentally determined and possible interferences of various salts were also studied. The method has been validated and applied to determine Cu(II) in various alloys and water samples.