Microfiltration

Microfiltration

Microfiltration
Our membrane filters and syringe filters are specifically manufactured according to the highest quality standards to meet your microfiltration needs. Sample preparation, fluid sterilization and testing are made easier and faster thanks to the wide variety of sizes available and high lot-to-lot reliability for consistent filtration quality.

Extraction thimbles

Ahlstrom-Munksjö offers high purity extraction thimbles in cellulose for Soxhlet
extractions, and in glass and quartz for the analysis of environmental pollution.  

Cellulose thimbles are high quality sample reservoirs for quality control, research and analytical applications, where solvent extraction of solids and semi-solids must be carried out. The use of a Soxhlet extractor provides a safe method of extraction with toxic and other noxious solvents. Ahlstrom-Munksjö high purity cellulose extraction thimbles are recommended for applications, including:

  • Determination of fats in food
  • Analysis of lacquer and binder in paints
  • Vitamin A and carotene extractions
  • Extraction of organic compounds from reaction mixtures
  • Polymer determination in the polymer industry
  • Quality management of components

Micro-glass fiber thimbles are a convenient tool for the separation of aerosol droplets and condensate from gases for applications, including:

  • Sampling dust particles and aerosols from gaseous streams
  • Soxhlet extractions requiring solvents too aggressive for cellulose thimbles


Micro-quartz fiber thimbles meet the highest purity requirements due to the lowest possible heavy metal content. Applications include:

  • Emission testing in high-temperature environments
  • Testing acidic gases not compatible with micro-glass fiber thimbles

Membrane filters

Membrane filters

Ahlstrom-Munksjö ReliaDisc™ Membrane Filters feature the most popular membrane materials for diverse applications, including:

  • Particle retention and collection
  • Sterile filtration of solutions
  • Microbiological applications for cell growth and colony counting
  • Particulate analysis
  • Air monitoring applications
  • Microbiological analysis of potable and waste waters

ReliaDisc™ sterile gridded microbiology membranes

Our gridded sterile membranes are packed individually specifically designed to save time when performing colony counting and microbiological quality control.

ReliaDisc™ non-sterile membrane filters

We supply a wide range of plain white non-sterile microfiltration membranes suitable for the collection or removal of particles and microorganisms from various organic solvents and aqueous solutions.

Our syringe filters are offered in a wide variety of membranes, pore sizes, diameters and connections.

  • High lot-to-lot reliability and reproducibility for consistent filtration quality
  • Ultra-pure production facility in Germany according to the highest quality standards

Syringe filters

Syringe filters

ReliaPrep™ Syringe Filters are available in several different membranes and sizes to accommodate a variety of sample matrices for demanding sample preparation and microfiltration applications, such as:

  • Sample clarification/particulate removal
  • Filtration of solvents used for chromatography applications
  • Filtration of biological samples, tissue cultures, proteins and nucleic acids
  • Sterile filtration and venting

Our syringe filters are offered in a wide variety of membranes, pore sizes, diameters and connections.

  • High lot-to-lot reliability and reproducibility for consistent filtration quality
  • Ultra-pure production facility in Germany according to the highest quality standards
  • Sterile packaging available for CA and PES ReliaPrep™
  • Transparent syringe filter housing for full visual control
  • High quality housing construction and welding to prevent any leaking

For more information, please contact laboratory@ahlstrom-munksjo.com

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