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Lab Filtration
Lab Instrument
Industry Liquid Filtration


Why Choose 0.22 μm Syringe Filters?

When you plan to order syringe filters for your lab, you must know which pore size of syringe filter is the most suitable for your application. Filtering different samples requires selections of syringe filters with different pore sizes. Generally speaking, the most common ones are 0.45 micron and 0.22 micron pore size. If you don't choose the right pore size, the syringe filter won't work at its best.


Why Use Syring Filter?

Disposable syringe filters are widely used in laboratories. They are lightweight and very clean, mainly used for sample pre-filtration, clarification and particle removal, and sterilization filtration of liquids and gases. It is the preferred method for filtering small samples by HPLC and GC. Chromatographic columns are packed with chromatographic particles and are prone to clogging, mobile phase and samples need to be filtered to protect the column. As a common chromatographic consumable, the syringe filters can prevent chromatographic column blockage and increase their service life.


Does Syringe Filter Diameter Matter?

Syringe filter has different pore sizes to meet requirements of different sample filtration. It is important to ensure that the pore size of the syringe filter is appropriate for your application. Below are examples of the most common pore sizes and typical applications found in our range. Syringe filters are available in a variety of pore sizes, with the most common pore sizes being 0.22 microns and 0.45 microns.

  • 0.1μm - solution sterilization and mycoplasma removal
  • 0.2/0.22μm - solution sterilization (sterilization)
  • 0.45µm - General Filtration and Particle Removal
  • >0.45μm - generally used for pre-filtration


Difference between 0.22 μm and 0.45 μm syringe filter

Sterile filtration can be achieved with 0.22 micron pore size syringe filter. When use, bacteria will be trapped, and many bacteria will die under pressure. 0.45um is generally used to reduce microbial load, it can filter out most microorganisms and bacteria, and it can be used for filtration of conventional samples and mobile phases. However, when the bacterial content reaches the 4th power of 10, it may cause pollution.


Why choose Membrane Solutions Syringe Filter?

Membrane Solutions offers numerous types of syringe filters to cover most application requirements. All of these syringe filters are certified to ISO9000. MS syringe filters are available with Nylon, PES, PTFE, PVDF, MCE, CA, PP and GF membrane and filter media, in numerous pore sizes, 0.22 μm and 0.45 μm are the most common pore sizes.