Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
-214
From page
215
To page
0
Abstract
Cloud point extraction (CPE) has been used for the simultaneous pre-concentration of cadmium, copper, lead and zinc after the formation of a complex with 1-(2-thiazolylazo)-2naphthol (TAN), and later analysis by flame atomic absorption spectrometry (FAAS) using octylphenoxypolyethoxyethanol (Triton X-114) as surfactant. The chemical variables affecting the separation phase and the viscosity affecting the detection process were optimized. At pH 8.6, pre-concentration of only 50ml of sample in the presence of 0.05% Triton X-114 and 2× 10-5moll-1 TAN permitted the detection of 0.099, 0.27, 1.1 and 0.095ngml-1 cadmium, copper, lead and zinc, respectively. The enhancement factors were 57.7, 64.3, 55.6 and 63.7 for cadmium, copper, lead and zinc, respectively. The proposed method has been applied to the determination of cadmium, copper, lead and zinc in water samples and a standard reference material (SRM).
Journal title
Analytica Chimica Acta
Serial Year
2001
Journal title
Analytica Chimica Acta
Record number
49687
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