Synthesis and application of glutaric dihydrazide modified multiwalled carbon nanotubes for selective solid-phase extraction and preconcentration of Cu(II), Zn(II), Ni(II), and Fe(III).

@article{Tavallali2012SynthesisAA,
  title={Synthesis and application of glutaric dihydrazide modified multiwalled carbon nanotubes for selective solid-phase extraction and preconcentration of Cu(II), Zn(II), Ni(II), and Fe(III).},
  author={Hossein Tavallali and Saeed Zahmatkesh and Mehdi Aalaei and Dawood Abdardideh},
  journal={Journal of AOAC International},
  year={2012},
  volume={95 3},
  pages={897-902}
}
An SPE method for selective separation-preconcentration of Cu(ll), Zn(II), Ni(II), and Fe(III) on multiwalled carbon nanotubes (MWCNTs) modified by glutaric dihydrazide prior to flame atomic absorption spectrometric determination was investigated. The adsorption was achieved quantitatively on MWCNTs at pH 5.0, and then the retained metal ions on the adsorbent were eluted with 1 M HNO3. The effects of analytical parameters including pH of the solution, eluent type, sample volume, and matrix ions… CONTINUE READING