Conference Portal, 2018 International Conference on Pure and Applied Science

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Fe3O4 MNPs adsorbent for pre-concentration and determination of Cd (II) ions in drinking water using Flame Atomic Absorption Spectrometry
Layth I. Abd Ali, Nsar S. Omar

##manager.scheduler.building##: Presidency Building Conference Hall
Date: 2018-04-23 04:05 PM – 04:25 PM
Last modified: 2018-08-16


This work terms synthesis, characterization and usage of a magnetic nanoparticles Fe3O4 as an adsorbent for pre-concentration of Cd (II) in water. The morphology of Fe3O4 was investigated using FTIR, FESEM. Extraction efficiency of Fe3O4 was analyzed using batch process with flame atomic absorption spectrometry. Factors affecting pre-concentration such as pH, dosage of adsorbent, time of extraction, volume of sample, solvent of elution and interferences were optimized. It was determined that Cd (II) adsorption is highly pH dependent, and a high recovery (94%) was achieved at pH 6.0. The limit of detection (3SDblank/m), limit of quantification (10SDblank/m), pre-concentration factor and the relative standard deviation  of Cd (II) extraction were 1.26 ng/mL, 4.28 ng/mL, 30 and 3.8% (concentration = 10 ng/mL, n = 10), respectively. Good relative recoveries of 82% to 97% (%RSD < 4.45) were achieved from a spiked commercial drinking water and tap water samples.


Published 01 August 2018

DOI: 10.14500/icpas2018.ach95


Cadmium; FAAS; Fe3O4 nanoparticles; Magnetic solid phase extraction

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