Polypyrrole/multi-walled carbon nanotube composite for the solid phase extraction of lead(II) in water samples


Sahmetlioglu E., Yılmaz E., Aktas E., Soylak M.

TALANTA, vol.119, pp.447-451, 2014 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 119
  • Publication Date: 2014
  • Doi Number: 10.1016/j.talanta.2013.11.044
  • Journal Name: TALANTA
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.447-451
  • Keywords: Conducting polymer, Multi-walled carbon nanotubes, Nanocomposite, Lead, Solid phase extraction, ATOMIC-ABSORPTION-SPECTROMETRY, TRACE-METAL IONS, SPECTROPHOTOMETRIC DETERMINATION, ENVIRONMENTAL-SAMPLES, SORBENT EXTRACTION, URINE SAMPLES, TABLE SALT, PRECONCENTRATION, SEPARATION, COPPER

Abstract

A multi-walled carbon nanotubes-polypyrrole conducting polymer nanocomposite has been synthesized, characterized and used for the separation and preconcentration of lead at trace levels in water samples prior to its flame atomic absorption spectrometric detection. The analytical parameters like pH, sample volume, eluent, sample flow rate that were affected the retentions of lead(II) on the new nanocomposite were optimized. Matrix effects were also investigated. Limit of detection and preconcentration factors were 1.1 mu g L-1 and 200, respectively. The adsorption capacity of the nanocomposite was 25.0 mg lead(II) per gram composite. The validation of the method was checked by using SPS-WW2 Waste water Level 2 certified reference material. The method was applied to the determination of lead in water samples with satisfactory results. (C) 2013 Elsevier B.V. All rights reserved.