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On-line trace enrichment of phenolic compounds from water using a pyrrole-based polymer as the solid-phase extraction sorbent coupled with high-performance liquid chromatography

Bagheri, H ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. DOI: 10.1016/j.aca.2004.03.020
  3. Publisher: 2004
  4. Abstract:
  5. A pyrrole-based conductive polymer was prepared and applied as new sorbent for on-line solid-phase extraction (SPE) of phenol and chlorophenols from water samples. Polypyrrole (PPy) was synthesized by chemical oxidation of the monomer in non-aqueous solution. The efficiency of this polymer for extraction of phenol and chlorophenols was evaluated using 35 mg of PPy as the sorbent in an on-line SPE system coupled to reversed-phase liquid chromatography with UV detection. The mobile phase were mixture of phosphate buffer-acetonitrile and compounds were eluted by the mobile phase using a six-port switching valve. High volumes of water, up to 160 ml, could be preconcentrated without the loss of phenols, except for the more polar ones. The R.S.D. for a river water sample spiked with phenol and chlorophenols at sub-ppb level was lower than 7% (n=5) and detection limits of 15-100 and 35-150 ng l-1 for tap and river water were obtained, respectively. © 2004 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Liquid chromatography ; On-line trace enrichment ; Phenols ; Polypyrrole ; Solid-phase extraction
  8. Source: Analytica Chimica Acta ; Volume 513, Issue 2 , 2004 , Pages 445-449 ; 00032670 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0003267004003216