Physical Sciences and Mathematics Commons^™

Vortex-Assisted Magnetic Solid Phase Extraction Of Pb And Cu In Some Herb Samples On Magnetic Multiwalled Carbon Nanotubes, Di̇lek Kamaş, Aslihan Karatepe, Mustafa Soylak

Turkish Journal of Chemistry

This study is the development of a new solid phase extraction method based on using magnetic multiwalled carbon nanotubes impregnated with 1-(2-pyridylazo)2-naphthol (PAN) for separation, preconcentration, and flame atomic absorption spectrometric determination of Pb(II) and Cu(II). Optimization of the method was done by investigating pH effect, amount of magnetic multiwalled carbon nanotubes impregnated with PAN, eluent type and volume, matrix effects, and volume of the sample. The optimum adsorbent amount was found to be 75 mg and the optimum pH value was found as 5.5. The detection limits were 16.6 μg L-1 for Pb(II) and 18.9 μg L-1 for Cu(II). …