Ozdes, Duygu; Duran, Celal; Bektaş, Hakan; Tufekci, Mehmet; Soylak, Mustafa

A simple and rapid procedure based on the combination of carrier element free coprecipitation (CEFC) and flame atomic absorption spectrometric (FAAS) determinations has been developed for selective separation and preconcentration of Cu(II) ions in some environmental solid (Turkish and import coffee) and liquid (sea and stream waters) samples. In this method, acetohydrazide derivative was used as an organic coprecipitant without adding any carrier element for coprecipitation of Cu(II) ions. The preconcentration factor was found to be 50, the limit of detection (LOD) was 0.31 μgL -1, while the relative standard deviation (RSD) was found to be 1.6% for Cu(II) ions.