Selective Determination of Copper in Water Samples by Atomic Absorption Spectrometry after Cloud Point Extraction


Yetimoglu E. K. , Urucu O. A. , Gunduz Z. Y. , Filik H.

ANALYTICAL LETTERS, cilt.43, ss.1846-1856, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 43 Konu: 12
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1080/00032710903502132
  • Dergi Adı: ANALYTICAL LETTERS
  • Sayfa Sayıları: ss.1846-1856

Özet

A preconcentration methodology utilizing the cloud point phenomenon is described for the determination of copper by flame atomic absorption spectrometry. The reagent Sulfathiazolylazo resorsin was used as a complexing agent. The preconcentration factor of 25-fold was obtained. The calibration curve is linear in the range of 4-400 mu gL-1 with a limit of detection of 0.64 mu gL-1. The relative standard deviation (n=5, 12 mu gL-1) was 3.5%. The cloud point is formed in the presence of phenol at room temperature. The method was successfully applied to the determination of copper in water samples and a standard reference material.