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Abstract: Pickering emulsion polymerization has been employed for the Ultrasonic assisted-micro solid phase extraction (UA-μSPE) of ultra trace arsenic species by a new magnetic ion imprinted polymer (MIIP) prior to hydride generation atomic absorption spectrometry. 2-acetyl benzofuran thiosemicarbazone (2-ABT) as a new chelating agent and core- shell hydrophobic magnetic nanoparticles was synthesized and the polymerization was carried out at the presence of arsenic - ligand complex, crosslinker, monomer, initiator, stabilizing agent and water-oil emulsion magnetic carrier. In second step, the nanoparticles and polymers were characterized. The analytical parameters such as pH, amount of polymer and ultrasonic time were selected and optimozed by Plackett-Burman and Box-Behnken designs respectively. Linear dynamic range, detection limit and relative standard deviation were 0.01-85.000 μg L-l, 0.003 μg L-l, and 3.21%, respectively. The proposed preconcentration procedure was successfully applied to the determination of arsenic ion in a wide range of food samples with different and complex matrixes
Template and target information: arsenic
Author keywords: Arsenic speciation, Pickering emulsion polymerization, Hydride generation atomic absorption spectrometry, Magnetic imprinted polymer, Ultrasonic-assisted micro solid phase extraction, Experimental design