Page 237 - 2022-23 BIOFACT Catalogue

Filtration

Membrane Filter [BIOFACT]

Various Materials, Pore Sizes and Diameters

BioFACT™ Membrane Filter is a microporous polymer lms with speci c pore size ratings and it guarantees high quality, repro-
ducibility and stability. BioFACT™ Membrane Filter is widely used for general sample ltration in various elds such as quality
control, environmental monitoring and research and it is especially suitable for microorganism / particle analysis and collection
due to its microporous feature. Customers can choose a wide variety of membrane materials, pore sizes and diameters according
to individual speci c needs.
Feature
• Suitable for microorganism / particle analysis and collection • Available to particle removal and ltration quicker than syringe lter
• through microporous feature • Various materials, pore sizes and diameters

Membrane lter How to use membrane lter

Feature of various membrane materials

Hydrophilic / Mild Hydrophilic / orgnic
Hydrophilic Mild organic solvent
orgnic solvent solvent (mid-polar)
PTFE
MCE PES PVDF Nylon
Type (Polytetra uoroethylene-
(Mixed Cellulose Ester) (Polyethersulfone) (Polyvinylidene Fluoride) (Polyamide)
Hydrophobic)
SEM image

Pore size 0.2㎛/0.45 ㎛ 0.2㎛/0.45 ㎛ 0.2㎛/0.45 ㎛ 0.2㎛/0.45 ㎛ 0.2㎛/0.45 ㎛
Polarity Hydrophilic (Polar) Polar / non-polar Hydrophobic (Non-polar)
Protein Binding High Low Very low Middle Low
Chemical compatibility Limited, pH 3.5 – 8 Limited, pH 1 – 14 High resistance High resistance Extremely high resistance
Research analysis Aqueous solutions (Culture Mild organic solvent & Organic solven filtration Organic solven filtration only
Application Remove of aqueous particles medium, additive and bu er) HPLC sample filtration Water Soluble & alkali solvent Air vent
Filter sterilization filtration filtration

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BIOFACT CATALOGUE