title: Polypyrrole/multi-walled carbon nanotube composite for the solid phase extraction of lead(II) in water samples.
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 µg L(-1) and 200, respectively. The adsorption capacity of the nanocomposite was 25.0mg 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.
authors.affiliation: Nigde University, Faculty of Sciences and Arts, Chemistry Department, 51100 Nigde, Turkey.
authors.forename: Ertugrul
authors.initials: E
authors.lastname: Sahmetlioglu
authors.affiliation: Erciyes University, Faculty of Sciences, Chemistry Department, 38039 Kayseri, Turkey.
authors.forename: Erkan
authors.initials: E
authors.lastname: Yilmaz
authors.affiliation: Nigde University, Faculty of Sciences and Arts, Chemistry Department, 51100 Nigde, Turkey.
authors.forename: Ece
authors.initials: E
authors.lastname: Aktas
authors.affiliation: Erciyes University, Faculty of Sciences, Chemistry Department, 38039 Kayseri, Turkey. Electronic address: soylak@erciyes.edu.tr.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soylak
mesh_terms: D000327:Adsorption; D007854:Lead / Q000032:analysis*; D057230:Limit of Detection; D037742:Nanotubes, Carbon; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D037742:Nanotubes, Carbon; D011108:Polymers; D011758:Pyrroles; D014874:Water Pollutants, Chemical; D007854:Lead; C067635:polypyrrole
keywords: Conducting polymer; Lead; Multi-walled carbon nanotubes; Nanocomposite; Solid phase extraction