DIN 38407-27 is a German standard method for the examination of water, wastewater and sludge for the determination of selected phenols in groundwater and leachate, aqueous eluates and percolates [1].
After derivatization of the analytes with acetic anhydride to their corresponding acetates and subsequent liquid-liquid extraction, the determination is carried out using gas chromatography/mass spectrometry (GC-MS).
For this application liquid-liquid extraction has been replaced with stir bar sorptive extraction (SBSE) using the GERSTEL Twister.

Highlights

  • Stir Bar Sorptive Extraction (SBSE) GC-MS allows sensitive determination of phenolic compounds in water samples
  • Sample preparation is performed according to DIN 38407-27
  • Liquid-liquid extraction is replaced by SBSE, avoiding solvent consumption
  • Another step towards green chemistry
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