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A Novel 4-(2-pyridylazo) Resorcinol Functionalised Magnetic Nanosorbent for Selective Extraction of Cu(II) and Pb(II) Ions From Food and Water Samples

A Novel 4-(2-pyridylazo) Resorcinol Functionalised Magnetic Nanosorbent for Selective Extraction of Cu(II) and Pb(II) Ions From Food and Water Samples

Ali Akbar Asgharinezhad, Homeira Ebrahimzadeh, Mehdi Rezvani, Nafiseh Shekari, Masood Loni

Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2014;31(7):1196-204.

PMID: 24827373

Abstract:

This paper describes a novel sorbent based on 4-(2-pyridylazo) resorcinol functionalised magnetic nanoparticles and its application for the extraction and pre-concentration of trace amounts of Cu(II) and Pb(II) ions. The nanosorbent was characterised by Fourier transform infrared spectroscopy, X-ray powder diffraction, thermal analysis, elemental analysis and scanning electron microscopy. The effects of various parameters such as pH, sorption time, sorbent dosage, elution time, volume and concentration of eluent were investigated. Following the sorption and elution of analytes, Cu(II) and Pb(II) ions were quantified by flame atomic absorption spectrometry. The limits of detection were 0.07 and 0.7 μg l(-1) for Cu(II) and Pb(II), respectively. The relative standard deviations of the method were less than 7%. The sorption capacity of this new sorbent were 92 and 78 mg g(-1) for Cu(II) and Pb(II), respectively. Finally this nanosorbent was applied to the rapid extraction of trace quantities of Cu(II) and Pb(II) ions in different real samples and satisfactory results were obtained.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1141599	4-(2-Pyridylazo)resorcinol		1141-59-9	Price

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