title: Ligandless surfactant mediated solid phase extraction combined with Fe₃O₄ nano-particle for the preconcentration and determination of cadmium and lead in water and soil samples followed by flame atomic absorption spectrometry: multivariate strategy.
abstract: In the present study, a microextraction technique combining Fe3O4 nano-particle with surfactant mediated solid phase extraction ((SM-SPE)) was successfully developed for the preconcentration/separation of Cd(II) and Pb(II) in water and soil samples. The analytes were determined by flame atomic absorption spectrometry (FAAS). The effective variables such as the amount of adsorbent (NPs), the pH, concentration of non-ionic (TX-114) and centrifugation time (min) were investigated by Plackett-Burman (PBD) design. The important variables were further optimized by central composite design (CCD). Under the optimized conditions, the detection limits (LODs) of Cd(II) and Pb(II) were 0.15 and 0.74 µg/L, respectively. The validation of the proposed procedure was checked by the analysis of certified reference materials of TMDA 53.3 fortified water and GBW07425 soil. The method was successfully applied for the determination of Cd(II) and Pb(II) in water and soil samples.
authors: Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey; PCSIR Laboratories, Karachi, Pakistan.
authors: N
authors: N
authors: Jalbani
authors: Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey. Electronic address: soylak@erciyes.edu.tr.
authors: M
authors: M
authors: Soylak
mesh_terms: D000042:Absorption; D002104:Cadmium / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D005290:Ferric Compounds / Q000737:chemistry; D007854:Lead / Q000032:analysis*; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry; D012987:Soil / Q000737:chemistry*; D052616:Solid Phase Extraction; D013054:Spectrophotometry, Atomic; D014867:Water / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D005290:Ferric Compounds; D012987:Soil; D002104:Cadmium; D014867:Water; C000499:ferric oxide; D007854:Lead
keywords: Cd(II); Fe(3)O(4) nano particles; Multivariate study; Pb(II); Triton X-114