Solid phase extraction and determination of indium using multiwalled carbon nanotubes modified with magnetic nanoparticles

Volume1,Issue01,Pages5-10,Ar-AMC-14 *** Field: Environmental Analysis

  • Ehsan Zolfonoun
Keywords: Indium, Preconcentration, carbon nanotubes, Fe3O4 nanoparticles


In this work MWCNTs-Fe3O4 nanocomposite was used as an adsorbent for extraction and preconcentration of indium from aqueous solutions. The magnetic MWCNTs with adsorbed analytes were easily separated from the aqueous solution by applying an external magnetic field. After elution of the adsorbed analytes, the concentration of indium was determined using inductively coupled plasma optical emission spectrometry determination. The effects of pH, sorbent amount, eluent type, chelating reagent concentration, sample volume and time on the recovery of the In(III) were investigated. Under the optimum conditions, the detection limit for In(III) was 0.28 μg L−1. The precision of the method, evaluated as the relative standard deviation obtained by analyzing a series of ten replicates, was 3.1 %. The method was successfully applied for the determination of In(III) in environmental water samples.

Author Biography

Ehsan Zolfonoun

Material and Nuclear Fuel Research school, Nuclear Science and Technology Research Institute, Tehran, Iran


M. Souad, C. Louage, J. Yves Doisy, L. Meunier, A. Benderrag, B. Ouddane, S. Bellayer, N. Nuns, M. Traisnel, U. Maschke, Extraction of indium-tin oxide from end-of-life LCD panels using ultrasound assisted acid leaching, Ultrason. Sonochem., 40 (2018) 929-936.

J. Uhrovčík, J. Lesný, Determination of indium in liquid crystal displays by flame atomic absorption spectrometry, J. Ind. Eng. Chem., 21 (2015) 163-165.

J.R. Dean, Practical inductively coupled plasma spectroscopy, Wiley., UK, 2005.

B. Çelik, E. Akkaya, S. Bakirdere, F. Aydin, Determination of indium using vortex assisted solid phase microextraction based on oleic acid coated magnetic nanoparticles combined with slotted quartz tube-flame atomic absorption spectrometry, Microchem. J., 141 (2018) 7-11.

M. Eftekhari, M. Gheibi, M. Akrami, F. Iranzad, Solid-phase extraction of ultra-trace levels of lead using tannic acid-coated graphene oxide as an efficient adsorbent followed by electrothermal atomic absorption spectrometry; response surface methodology – central composite design, New J. Chem., 42 (2018) 1159-1168.

J.B. Ghasemi and E. Zolfonoun, Simultaneous spectrophotometric determination of trace amounts of uranium, thorium, and zirconium using the partial least squares method after their preconcentration by α-benzoin oxime modified Amberlite XAD-2000 resin, Talanta, 80 (2010) 1191-1197.

Y. Li, Y.C. Liu, and J. Tang, Fe3O4-Al2O3 magnetic core-shell microspheres for rapid and highly specific capture of phosphopeptides with mass spectrometry analysis, J. Chromatogr. A, 1172 (2007) 57-71.

D. Horak, B. Rittich, J.A. Safar, A. Spanova, J. Lenfeld, and M.J. Benes, Properties of RNase A immobilized on magnetic poly(2-hydroxyethyl methacrylate) microspheres. Biotechnol. Prog., 17 (2001) 447-452.

J.B. Ghasemi and E. Zolfonoun, Simultaneous spectrophotometric determination of trace amount of polycyclic aromatic hydrocarbons in water samples after magnetic solid-phase extraction by using projection pursuit regression, Environ. Monit. Assess., 185 (2013) 2297-2305.

A. Mehdinia, M. Ramezani, A. Jabbari, Preconcentration and determination of lead ions in fish and mollusk tissues by nanocomposite of Fe3O4@graphene oxide@polyimide as a solid phase extraction sorbent, Food Chem., 237 (2017) 1112-1117.

R.H. Baughman, A.A. Zakhidov, and W.A. deHeer, Carbon nanotubes-the route toward applications,Science, 297 (2002) 787-792.

C. Herrero-Latorre, J. Barciela-García S. García-Martín R. M. Peña-Crecente, Graphene and carbon nanotubes as solid phase extraction sorbents for the speciation of chromium: A review, Anal. Chim. Acta, 1002 (2018) 1-17.

Z. Dehghani, Firouzabadi, S. Dadfarnia, A.M. Haji Shabani, M.H. Ehrampoush, E.N. Tafti, Magnetic dispersive solid phase extraction using modified magnetic multi-walled carbon nanotubes combined with electrothermal atomic absorption spectrometry for the determination of selenium, Int. J. Environ. Anal. Chem., 98 (2018) 555-569.

A. Pistone, D. Iannazzo, and M. Fazio, Synthesis and magnetic properties of multiwalled carbon nanotubes decorated with magnetite nanoparticles, Physica B, 435. (2014) 88-91.

A. Masotti and A. Caporali, Preparation of Magnetic Carbon Nanotubes (Mag-CNTs) for Biomedical and Biotechnological Applications, Int. J Mol. Sci., 14 (2013) 24619-24642.

How to Cite
Zolfonoun, E. (2018). Solid phase extraction and determination of indium using multiwalled carbon nanotubes modified with magnetic nanoparticles. Analytical Methods in Environmental Chemistry Journal, 1(01), 5-10.
Original Article