Determination of phenols in landfill leachate-contaminated groundwaters by solid-phase extraction

Lotte Ask Reitzel, Anna Ledin

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A solid-phase extraction method for phenols in landfill leachates was developed and optimized in order to solve the expected and observed problems associated with an anaerobic matrix containing high concentrations of salts and organic matter. Isolute ENV1 cartridges exhibited the best retention of phenols of the four sorbents examined, and was the only cartridge which a 1 L leachate sample could pass through. With the other cartridges, clogging made this impossible. The final method, which included 27 different phenols, gave detection limits of ,0.1 mg/L (drinking water concentration limit for pesticides) for most phenols (25), and for 12 phenols ,0.01 mg/ L. Recovery rates (determined for four concentrations in the range 1–25 mg/ L, two replicates of each) were in the range 79–104% (SD 1–12%), except for phenol (2661.3%) and 2-methoxyphenol (6264.2%). Up to 12 different phenols could be identified in leachates from three Danish landfills, ranging in concentration from 0.01 to 29 mg/ L, which is at the lower end of the concentration range usually found for phenols in landfill leachates (sub-mg/L to mg/L).  2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
JournalJournal of Chromatography A
Volume972
Pages (from-to)175-182
ISSN0021-9673
DOIs
Publication statusPublished - 2002

Keywords

  • Landfill leachates
  • Solid-phase extraction
  • Water analysis
  • Phenols

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