Journal Highlight: SPE of lead and copper on a polyhydroxybutyrate-b-polydimethyl siloxane block copolymer disc and FAAS determination of them in water and food samples

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  • Published: Nov 4, 2013
  • Author: spectroscopyNOW
  • Channels: Atomic
thumbnail image: Journal Highlight: SPE of lead and copper on a polyhydroxybutyrate-b-polydimethyl siloxane block copolymer disc and FAAS determination of them in water and food samples
Cu(II) and Pb(II) were extracted from food and water by SPE as their Sudan III chelates on a block copolymer disc for determination by flame atomic absorption spectrometry.

Solid-phase extraction of lead and copper on a polyhydroxybutyrate-b-polydimethyl siloxane (PHB-b-PDMS) block copolymer disc and flame atomic absorption spectrometric determination of them in water and food samples

International Journal of Food Science & Technology, 2013, 48, 2384-2390
Mustafa Tuzen, Yunus Emre Unsal, Mustafa Soylak, Zeynep Akkirman, Baki Hazer

Abstract: A separation and preconcentration procedure based on solid-phase extraction of Cu(II) and Pb(II) as their Sudan III chelates on polyhydroxybutyrate-b-polydimethyl siloxane (PHB-b-PDMS) block copolymer disc has been established. Various analytical parameters including pH, amount of Sudan III, eluent type and volume, sample volume, flow rates were optimised. The effects of concomitant ions on the retentions of the analyte ions on PHB-b-PDMS disc were also examined. The detection limits for Cu(II) and Pb(II) were found to be 2.3 and 4.9 μgL−1, respectively. Preconcentration factor was found to be sixty. Relative standard deviation was found to be 5%. The accuracy of the method was confirmed by analysing certified reference materials (TMDA 54.4 fortified lake water and NIST 1515 Apple leaves). Optimised method was applied to determine the analyte ions in various water and food samples from Turkey.

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