Microwave Extraction
Microwave Extraction

Microwave Extraction

MilestoneThe use of laboratory microwave ovens for organic extraction elevates sample preparation to the same level of sophistication as sample analysis.

It is now possible to speed up extraction, reduce costs, boost effectiveness, consistency and simplicity of reactions.


Ethos X Several configurations to accomplish a wide range of applications.

The use of microwave energy to accelerate solvent extraction procedures was first described by Ganzler et al. in 1984. These researchers used polar, microwave absorbing solvents or mixtures to extract crude fat from food and pesticides from soil matrices.

Microwave extraction rates were found to be significantly faster, with recoveries comparable or superior to traditional Soxhlet extraction, and with a substantial reduction of the amount of solvent required.

New Milestone ETHOS X is an advanced microwave extraction system offering the best technology currently available for GC or GC-MS and HPLC analysis.

  • Reliable GC or GC-MS analysis
  • High sample throughput
  • Low running costs
  • Efficiency and consistency
  • Simplicity



    Enviromental ApplicationsDesigned by you.
    Developed for you.

    Environmental laboratory professionals spoke, we listened. After looking at the working routine of several thousands contract laboratories around the world performing microwave solvent extraction, and we defined the solution that led to creation of ETHOS X and fastEX-24 extraction rotor to specifically address the challenges of today’s environmental laboratories.
    The Milestone ETHOS X microwave lab station in combination with our fastEX-24 extraction rotor offers your laboratory the simultaneous extraction of 24 samples in 40 minutes with minimal solvent usage. Our unique WeflonTM material provides homogeneous heating and facilitates accurate contactless temperature monitoring of all vessels.
    Each vessel holds 100 mL disposable glass vials allowing you to extract up to 30 gram samples while eliminating memory effects and cleaning.

    • High productivity. 24 samples in 40 minutes.
    • Low running cost. Substantial reduction in solvent.
    • Ease of use. Disposable glass vials.
    • Larger sample amount. Up to 30 grams.
    • Compliance. Fully compliant with US EPA Method 3546.
    • Reliability. Consistent and reproducible results.


    Total Determination of fat content in just 90 minutes!

    Milk and Milk ProductsTraditional methods lead to the use of large amounts of solvents to remove fat from a sample matrix, resulting in low cost-effectiveness.
    As an example, conventional fat extraction of pretreated cheese usually requires 3 hours and over 100 mL of solvent per sample. The standard fat extraction methods are not efficient in matter of cost and time, also exposing laboratory technicians to dangerous solvents.
    To overcome these limitations, Milestone has developed a fast yet accurate microwave-based technology, which allows the chemist to carry out the simultaneous determination of fat content in 12 milk and milk products samples in just 90 minutes, with equivalent results of those obtained with reference techniques like Rose-Gottlieb method, Weibull-Stoldt or Schmid-Bondzynski-Ratzlaff method. The main advantages of this technology include:

    • 12 samples simultaneously
    • 75% solvent reduction
    • Up to 10 gram of sample amount
    • Combined hydrolysis and extraction


    Wish to get high-quality essential oils?

    Natural ProductsThe analytical procedure for The analytical procedure for flavors and fragrances extraction from plants or spices comprises two steps: extraction by steam distillation or hydro-distillation, and analysis by GC or GC-MS. While the analysis step requires just few minutes, extraction takes several hours, using a standard procedure based on the Clevenger (1928 year!).

    To address these limitations, Milestone has developed the new ETHOS X for the solvent-less extraction of natural products. It takes advantage of the unique microwave selective heating mechanism. The internal heating of the water within the sample distends its cells and leads to rupture of the glands and oleiferous receptacles. This process thus frees essential oil, and the flavors extracts is evaporated by the in-situ water of the plant material.

    • Fast, Solvent-less extraction
    • No work-up
    • High extracts purity
    • No thermal degradation