Technology

Yellow ETN-12 machine with clear cover, labeled as world’s first EME instrument, featuring green sample prep technology and pure extracts for reduced MS downtime.

Technology Overview

Electromembrane Extraction (EME) and Liquid Membrane Extraction (LME)

are two sample preparation techniques that have some similar advantages.

Both are non-destructive, give pure sample extracts, are environmentally friendly and have the possibility of enrichment. Both techniques use a similar setup with an aqueous sample and an acceptor solution in separate vials, separated by a thin organic solvent layer known as the supported liquid membrane (SLM).

Apply electric field

‍Electromembrane Extraction (EME)

  • Exhibits faster extraction rates compared to LME, generally achieving higher extraction efficiencies.
  • Accommodates a wider range of analyte hydrophobicities.
  • Exclusively applicable to ionizable analytes.
Read about EME →

‍Liquid Membrane Extraction (LME)

  • Conceptually simpler, making method development more straightforward.
  • Suitable for very weak acids, bases, and un-ionizable compounds.
  • More appropriate than EME for analytes that are highly susceptible to redox reactions.‍‍
Read about LME  →
Non destructive
Pure sample extracts
Environmentally friendly method
Enrichment possibility