FAAS slurry analysis of lead and copper ions preconcentrated on titanium dioxide nanoparticles coated with a silver shell and modified with cysteamine

Baysal A., Saatci A. D., Kahraman M., Akman S.

Microchimica Acta, vol.173, no.3-4, pp.495-502, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 173 Issue: 3-4
  • Publication Date: 2011
  • Doi Number: 10.1007/s00604-011-0586-3
  • Journal Name: Microchimica Acta
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.495-502
  • Keywords: Preconcentration, Separation, Copper, Lead, Flame atomic absorption spectrometry, SOLID-PHASE EXTRACTION, ATOMIC-ABSORPTION-SPECTROMETRY, MULTIWALLED CARBON NANOTUBES, NATURAL-WATERS, ICP-AES, INJECTION, CADMIUM, ENRICHMENT, SEPARATION, CHROMIUM
  • Istanbul Technical University Affiliated: Yes

Abstract

We report on the separation and preconcentration of lead(II) and copper(II) ions using silver-coated titanium dioxide nanoparticles modified with cysteamine, and their determination by slurry analysis via flame atomic absorption spectrometry. The ions were adsorbed via a conventional batch technique, and the ion-loaded slurry was separated and directly introduced into the spectrometer, thereby eliminating a number of drawbacks. The effects of pH, amount of sorbent, slurry volume, sample volume and other ions on the recovery were investigated. Under optimized experimental conditions, copper and lead can be recovered within the 95% confidence level in certificated waste water, but also in spiked sea water samples. The technique is fast, simple, and leads to complete elution. The limit of detection (3δ, at n = 10) was 0. 37 μg L-1 for Cu(II), and 0. 38 μg L-1 for Pb(II). © 2011 Springer-Verlag.