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Updated: May 27, 2025

Fabrication of a Dipole-assisted Solid Phase Extraction Microchip for Trace Metal Analysis in Water Samples
Published on: August 7, 2016
In situ sorbent formation dispersive solid phase extraction for multi-elemental analysis: a new approach using cyclen
Hasanain Najm Abed Altuwaijari1, Mohammad Reza Afshar Mogaddam2,3,4, Mir Ali Farajzadeh1,5
1Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran. mafarajzadeh@yahoo.com.
Abstract:
This study introduces an in situ sorbent formation dispersive solid-phase extraction method for the simultaneous extraction of seven metal ions (V, Cr, Ni, Cu, Zn, Cd, and Pb) in petroleum samples. For this purpose, a home-made extraction device was used to perform the method on a relatively high volume of sample solution. The method employed cyclen as both a sorbent and a chelator. Also, a magnetic ionic liquid was used as the collection/dissolution solvent. Rigorous optimization yielded a wide linear range, low detection limits, good precision (relative standard deviations ≤8.5%), and high extraction recoveries (56-72%). The method's performance was validated in real petroleum samples from Iraq and Iran, demonstrating its applicability, accuracy, and robustness against matrix effects. The method was successfully utilized for the determination of target metal ions in real samples.
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