International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
Vol. 12, No. 7, 2015, pp. 2389-2400
Bioline Code: st15225
Full paper language: English
Document type: Research Article
Document available free of charge
International Journal of Environment Science and Technology, Vol. 12, No. 7, 2015, pp. 2389-2400
© Copyright 2015 - International Journal of Environment Science and Technology
Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution|
Olorundare, O. F.; Msagati, T. A. M.; Krause, R. W. M.; Okonkwo, J. O. & Mamba, B. B.
Polyurethane composite adsorbent polymeric
material was prepared and investigated for selected solidphase
extraction for metal ions, prior to its determination
by inductively coupled plasma optical emission spectrometry.
The surface characterisation was done using Fourier
transform infrared spectroscopy. The separation and preconcentration
conditions of the analytes investigated
includes influence of pH, sample loading flow rate, elution
flow rate, type and concentration of eluents. The optimum
pH for the highest efficient recoveries for all metal ions,
which ranged from 70 to 85 %, is pH 7. The metal ions
were quantitatively eluted with 5 mL of 2 mol/L HNO3.
Common coexisting ions did not interfere with the separation.
The percentage recovery of the metal ions ranged
between 70 and 89 %, while the results for the limit of
detection and limit of quantification ranged from 0.249 to
0.256 and 0.831 to 0.855, respectively. The experimental
tests showed good preconcentration results of trace levels
of metal ions using synthesised polyurethane polymer
Heavy metals; Polymer adsorbent composite (PCAD); Preconcentration; Solid phase extraction (SPE); Inductively coupled plasma optical emission spectroscopy (ICP-OES)
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