Vacuum In Tube Extraction

GERSTEL V-ITEX

Vacuum In Tube Extraction

Automated vacuum extraction for GC-MS analysis made easy

Form Dialog

GERSTEL V-ITEX is an innovative, fully automated, vacuum-based extraction method developed by Agroscope (Switzerland) for the GC-MS determination of volatile organic compounds (VOCs).


Using a controlled vacuum, V-ITEX enables gentle extraction and enrichment even from temperature-sensitive and complex matrices – without heating, with virtually no solvent consumption, and with maximum reproducibility.


Enriched analytes are transferred directly and completely to the GC-MS system for the best possible detection limits and accuracy of results.

What types of analysis is V-ITEX suitable for?

  • Temperature-sensitive foods (e.g., fresh produce, dairy products, soy and oat milk)
  • Flavor analysis
  • Nutritional volatolomics and VOC analyses in biological fluids
  • Research in the field of volatolomics (VOCs in food and body fluids)

How V-ITEX works

Many established methods such as SAFE or Likens-Nickerson are time-consuming, labor-intensive, and consume large amounts of solvents. In addition, the headspace techniques used subsequently cannot analyze non-volatile components.



V-ITEX solves these problems through:

  • Gentle microextraction without heating
  • Sustainability thanks to minimal solvent consumption
  • Complete automation for maximum productivity
Vacuum In Tube Extraction

Main functions

  • Gentle VOC extraction
    from thermally sensitive samples without heating
  • Automatic enrichment and water management
    with the GERSTEL MultiPurposeSampler (MPS) in the V-ITEX module
  • Trap desorption
    occurs directly via the GC carrier gas flow


Advantages

  • As simple as a headspace injection, but significantly more powerful
  • Includes GC inlet with GERSTEL ePneumatics
  • Reproducible results – independent of GC or GC-MS
  • Compatible with almost all GC or GC-MS


Highlights

  • Vacuum-controlled pump for maximum repeatability
  • Efficient drying of aqueous samples
  • Parallel incubation of multiple samples with the GERSTEL AGIstir
  • Dynamic Focusing in the CIS 4 without cryogenic cooling
  • Universal integration into common GC and GC-MS, including Agilent MassHunter Acquisition Integration


Patents and certificates

  • Patent title: “Novel Dynamic Headspace Vacuum Transfer ‘in Trap’ Extraction Method and Apparatus for its Performance”
  • Swiss patent PCT/CH2019/000002
  • International patents: EP3921631 and US20220018740

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