Application of Central Composite Design for Optimization of Coacervative Extraction of Cu(II) Using Anionic Surfactant
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ANALCH-3-1_002
تاریخ نمایه سازی: 13 بهمن 1401
Abstract:
The aim of this work was to develop a new and simple coacervative extraction method for the preconcentration and spectrophotometric determination of Cu(II) in water samples. Dithizone was used as the chelating agent while an anionic surfactant, namely sodium dodecyl sulfate (SDS), was used as extracting agent at room temperature. Central composite design (CCD) based on response surface methodology (RSM) was employed to optimize main experimental parameters such as pH values of solutions, concentration of the surfactant and volume of the saturated salt. Analytical characteristics of the method such as limit of detection, linear range, relative standard deviation (R.S.D.) and relative standard error (R.S.E.) were calculated under the optimum conditions. The calibration graph was linear in the range of ۱۰-۱۰۰ ng ml-۱ with the detection limit of ۳.۸ ng ml-۱. The interference effects of some anions and cations were also studied. The method was successfully applied for the determination of Cu(II) in water samples.
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Authors
Morteza Bahram
Department of Chemistry, faculty of Science, Urmia University, Urmia, Iran
Loghman Shokri
Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran
Naimeh Mohseni
Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran
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