Authors: Elham Ashrafzadeh Afshar Mohammad Ali Taher Hamid Fazelirad Matin Naghizadeh
Publish Date: 2017/01/03
Volume: 409, Issue: 7, Pages: 1837-1843
Abstract
A new simple and efficient method including dispersive liquid–liquid–solidified floating organic drop microextraction and then electrothermal atomic absorption spectrometry has been developed for the preconcentration and determination of ultratrace amounts of indium The method was applied to preconcentrate the indium–12pyridylazo2naphthol complex in 25 μL 1undecanol The various factors affecting the extraction efficiency such as pH type and volume of extraction solvent type and volume of disperser solvent sample volume ionic strength and ligand concentration were investigated and optimized Under the optimum conditions an enrichment factor of 625 precision of ±475 a detection limit of 556 ng L−1 and for the calibration graph a linear range of 9603360 ng L−1 were obtained The method was used for the extraction and determination of indium in water and standard samples with satisfactory results
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