Microporous Filter Membrane

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Microporous Filter Membrane

Microporous filter membranes are primarily used for filtering mobile phases and samples in sample analysis, especially in chromatographic analysis. They play a crucial role in protecting chromatographic columns, infusion pump tubing systems, and injection valves from contamination. These membranes have been widely applied in gravimetric analysis, trace analysis, colloid separation, and sterility testing.

Uniform Aperture The pore size distribution is uniform, and the filtration accuracy is high.

High-throughput The number of pores per unit area is high, resulting in fast filtration speed.

Chemical Stability Resistant to acids, alkalis, and organic solvents.

Mechanical Strength It has a certain mechanical strength and is not easy to break.

Common types include: Mixed cellulose (MCE) material, cellulose acetate (CA) material, nylon (PA/NYLON) material, polypropylene (PP) material, polyethersulfone (PES) material, polyvinylidene fluoride (PVDF) material, polytetrafluoroethylene (PTFE) material, polycarbonate (PC membrane, with nuclear perforation) material, glass fiber (GLASS FIBER) material, and others.

Application fields

Pharmaceutical Used for drug component analysis and sterile filtration.
Environmental Monitoring For filtering water samples and air samples.
Food testing For the analysis of additives and residues in food.
Biological research For filtration of cell culture media and biological samples.
Electronics Industry Used for preparing high-purity water and filtering chemicals.

Precautions for Use

Correct installation Ensure that the filter membrane is securely connected to the filtration device to prevent leaks.
Avoid overpressure Control the filtration pressure to prevent the membrane from rupturing.
Replace regularly Avoid clogging of the filter membrane to ensure effective filtration.
Clean and store Clean promptly after use and store properly.

Sterile microporous filter membrane

Mixed cellulose ester is a filtration medium used for microbial analysis. Membranes made from this material maximize both the retention rate and the reproducibility of microorganisms. Its unique dotted grid design facilitates colony counting without affecting colony growth. The individually packaged products are sterilized by gamma irradiation.

Offer black-background white-grid film, pure white film, pink film, and green film.

Order item number	Membrane material	Diameter mm	Aperture μm	Packaging specifications
HKMF-NY4722	Nylon	47	0.22	100 piece/package
HKMF-NY4745	Nylon	47	0.45	100 piece/package
HKMF-PTB4722	Hydrophobic Polytetrafluoroethylene (PTFE)	47	0.22	100 piece/package
HKMF-PTB4745	Hydrophobic Polytetrafluoroethylene (PTFE)	47	0.45	100 piece/package
HKMF-PTL4722	Hydrophilic Polytetrafluoroethylene (PTFE)	47	0.22	100 piece/package
HKMF-PTL4745	Hydrophilic Polytetrafluoroethylene (PTFE)	47	0.45	100 piece/package
HKMF-MCE4722	Mixed Cellulose (MCE)	47	0.22	100 piece/package
HKMF-MCE4745	Mixed Cellulose (MCE)	47	0.45	100 piece/package
HKMF-CA4722	Cellulose Acetate (CA) Microporous Membrane	47	0.22	100 piece/package
HKMF-CA4745	Cellulose Acetate (CA) Microporous Membrane	47	0.45	100 piece/package
HKMF-PES4722	Polyether sulfone (PES)	47	0.22	100 piece/package
HKMF-PES4745	Polyether sulfone (PES)	47	0.45	100 piece/package
HKMF-PVB4722	Hydrophobic polyvinylidene fluoride (PVDF)	47	0.22	100 piece/package
HKMF-PVB4745	Hydrophobic polyvinylidene fluoride (PVDF)	47	0.45	100 piece/package
HKMF-PVL4722	Hydrophilic Polyvinylidene Fluoride (PVDF)	47	0.22	100 piece/package
HKMF-PVL4745	Hydrophilic Polyvinylidene Fluoride (PVDF)	47	0.45	100 piece/package
HKMF-PP4722	Polypropylene (PP)	47	0.22	100 piece/package
HKMF-PP4745	Polypropylene (PP)	47	0.45	100 piece/package