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Conductive polymers as new media for solid-phase extraction: Isolation of chlorophenols from water sample

Bagheri, H ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. DOI: 10.1016/S0021-9673(02)01972-6
  3. Publisher: Elsevier , 2003
  4. Abstract:
  5. Three different conductive polymers, poly-N-methylaniline (PNMA), polyaniline and polydiphenylamine were synthesised and used as sorbents for the solid-phase extraction of some phenolic compounds from water. The separation and determination was, subsequently, performed by gas chromatography-electron-capture and flame ionization detection. Among these easy-made polymers, PNMA gave better recovery for the extraction of the studied analytes. The capability of the PNMA to extract other non-polar compounds such as chloro- and methylbenzene, decane, decanol, cyclohexane and cyclohexanol was also studied. The polymer showed some sort of selectivity towards aromatic compounds than aliphatic. Preconcentration of sample volumes up to 1 l at pH 2 using 120 mg of PNMA led to acceptable recoveries for phenolic compounds, except for phenol. Recovery of phenol for 100 ml of water was 72%. Limits of detection for chlorophenols when 250 ml river water was preconcentrated were between 1 and 40 ng l-1, analyzed by GC-electron-capture detection. © Elsevier Science B.V. All rights reserved
  6. Keywords:
  7. Chlorophenols ; Environmental analysis ; Phenols ; Polymers ; Solid-phase extraction ; Water analysis
  8. Source: Journal of Chromatography A ; Volume 986, Issue 1 , 2003 , Pages 111-119 ; 00219673 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0021967302019726