Perconcentration and Determination of copper(II) by 1-(2-Pyridyl Azo)2-Naphtol(PAN) modified Octadecyl Silica

Mohamad Javad Poursharifi¹ and Ali Moghimi²*

¹Department of Chemistry, Saveh Branch Islamic Azad University, Saveh (Iran).

²Department of Chemistry, Varamin (Pishva)Branch Islamic Azad University, Varamin (Iran).

ABSTRACT:

A simple and reproducible method for the rapid extraction and determination of trace amounts of copper(II) ions using modification of Sodium Dodecyl Sulfonate (SDS) coated for C18 with and 1-(2-Pyridyl Azo)2-Naphtol(PAN) in order to prepare an effective sorbent for the preconcentration and Atomic Absorption Spectrometry is presented. The sorption capacity of 1-(2-Pyridyl Azo)2-Naphtol(PAN) -modified C18 was 5.0 mg.g -1  and the optimum pH for the quantitative recovery of copper was found as 5.0. The optimum flow rate, sorbent amount and sample volume were1.5 mL.min-1, 300 mg and 50 mL, respectively. 5 mL of  4 mol.L-1 HNO3 was the most suitable eluent. The recommended method is simple and reliable for the determination of copper without any notable matrix effect and  successfully applied to environmental water samples. The limit of detection of the proposed method is 45ng per mL.The method was applied to the extraction and recovery of Cu(II) in different water samples. In this  method is relative standard deviation (R.S.D.) of 2%. The method was applied to the extraction and recovery of copper in different water samples.

KEYWORDS:

Copper(II); Solid phase extraction; 1-(2-Pyridyl Azo) 2-Naphtol(PAN)-modified C18; Sodium Dodecyl Sulfonate (SDS);l FAAS

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Copy the following to cite this article: Poursharifi M. J, Moghimi A. Perconcentration and Determination of copper(II) by 1-(2-Pyridyl Azo)2-Naphtol(PAN) modified Octadecyl Silica. Orient J Chem 2011;27(4).

Copy the following to cite this URL: Poursharifi M. J, Moghimi A. Perconcentration and Determination of copper(II) by 1-(2-Pyridyl Azo)2-Naphtol(PAN) modified Octadecyl Silica. Orient J Chem 2011;27(4). Available from: http://www.orientjchem.org/?p=24231