Vortex-assisted magnetic solid phase extraction of Pb and Cu in some herb samples on magnetic multiwalled carbon nanotubes

Kamas D., KARATEPE A., SOYLAK M.

TURKISH JOURNAL OF CHEMISTRY, cilt.45, sa.1, ss.210-218, 2021 (SCI-Expanded) identifier identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.3906/kim-2009-26
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.210-218
  • Anahtar Kelimeler: Magnetic solid phase extraction, multiwalled carbon nanotubes, preconcentration, flame atomic absorption spectrometry, copper, lead, HEAVY-METALS, MEDICINAL HERBS, ENVIRONMENTAL-SAMPLES, TRACE-ELEMENTS, FOOD SAMPLES, PRECONCENTRATION, LEAD(II), CADMIUM, COPPER, PLANTS
  • Erciyes Üniversitesi Adresli: Evet

Özet

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 mu g L-1 for Pb(II) and 18.9 mu g L-1 for Cu(II). The relative standard deviations (RSD%) were less than 4%. Two certified reference materials: SPS-WW2 wastewater and NCS-DC73349 (bush branches and leaves) were used to test the validation of the method. The method was successfully applied to the analysis of Pb(II) and Cu(II) ions in daisy, mint, paprika, sage, rosemary, daphne leaves, heather, green tea, and Viburnum opulus samples.