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Microporous Membrane Filter

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Microporous Membrane Filter


NEW Hot sale Microporous Membrane Filter for HPLC Mobile phase filtration


PES Membrane


Polyesthersulfone (PES) membrane for aqueous solutions provides removal of fine particles, bacteria, viruses, and fungi making it a versatile membrane for applications such as sample preparation, sterile filtration and infusion therapy. PES is an inherently hydrophilic membrane that wets out quickly and completely resulting in fast filtration with superior flow rates and high throughputs. The hydrophilic nature of PES means no added surfactants are used to increase wettability. PES membrane is also extremely low protein binding minimizing the likelihood of target analyte binding. PES membrane is compatible with EtO, gamma irradiation, and autoclave methods of sterilization.


Nylon66 Membrane

Nylon66 membranes is for liquid filtration applications such as sample preparation, lysate clearing, and infusion therapy. Our portfolio of hydrophilic nylon membranes includes uncharged, charged and hydroxylated surface treatments for optimal performance depending on the application.

PTFE membrane

PTFE membrane are hydrophobic in nature and are effective barriers to microbes and particulate matter. The high titer reduction and water intrusion pressure allow the membrane to repel high surface tension liquids while venting gases. PTFE membranes are used in a variety of heathcare applications


such as vents on IV filters and spike vents, protecting equipment and sensors from fluids and contamination, and substrates for tissue growth and implatables. Material characteristics include broad chemical compatibility, excellent particle retention, easy handling and sealing, and compatibility with various sterilizing methods, making it a versatile material for applications which require a hydrophobic barrier. Whether you need to keep fluid confined while letting air or gas pass, a breathable particle, or a sterile barrier, PTFE is the ideal membrane. Excellent lot-to-lot consistnecy ensures product performance meets critical application requirements. Our PTFE membrane has one of the best ratios of airflow to particle retention available on the market.
Ordering Information

Item No.

Product Name

Diameter(mm)

Pore Size(μm)

Membrane Material

Unit/box

NMF21

Membrane Filter

50

0.45

PES(from Pall)

100Pcs/Bag

NMF22

Membrane Filter

50

0.22

PES(from Pall)

100Pcs/Bag

NMF23

Membrane Filter

50

0.45

Nylon 66(from Pall)

100Pcs/Bag

NMF24

Membrane Filter

50

0.22

Nylon 66(from Pall)

100Pcs/Bag


NMF27

Membrane Filter

50

0.45

PTFE(from Pall)

100Pcs/Bag

NMF28

Membrane Filter

50

0.22

PTFE(from Pall)

100Pcs/Bag

NMF29

Membrane Filter

50

0.45

Nylon 6

100Pcs/Bag

NMF30

Membrane Filter

50

0.22

Nylon 6

100Pcs/Bag

NMF31

Membrane Filter

50

0.45

MCE

100Pcs/Bag

NMF32

Membrane Filter

50

0.22

MCE

100Pcs/Bag

NMF33

Membrane Filter

47

0.45

PES(from Pall)

100Pcs/Bag

NMF34

Membrane Filter

47

0.22

PES(from Pall)

100Pcs/Bag

NMF35

Membrane Filter

47

0.45

Nylon 66(from Pall)

100Pcs/Bag

NMF36

Membrane Filter

47

0.22

Nylon 66(from Pall)

100Pcs/Bag


NMF39

Membrane Filter

47

0.45

PTFE(from Pall)

100Pcs/Bag

NMF40

Membrane Filter

47

0.22

PTFE(from Pall)

100Pcs/Bag

NMF41

Membrane Filter

47

0.45

Nylon 6

100Pcs/Bag

NMF42

Membrane Filter

47

0.22

Nylon 6

100Pcs/Bag

NMF43

Membrane Filter

47

0.45

MCE

100Pcs/Bag

NMF44

Membrane Filter

47

0.22

MCE

100Pcs/Bag

NMF45

Membrane Filter

47

0.45

MCE(sterile, individually packed)

50Pcs/Bag

NMF46

Membrane Filter

47

0.22

MCE(sterile, individually packed)

50Pcs/Bag

We also can manufactuered as required. OEM is accepted.


The membrane use instructions:

1. Before use must according to the need to accurately choose the pore size of membrane, the membrane filter to filter out the material must be greater than the pore size.

2. Before using for the cleaning, which is 70-80 degrees distilled water for 4 hours, or immersion in distilled water at room temperature for 12 hours.

3. Particles and bacteria in the filtrate is large, should be the pre filtering, which is pre filter medium or large aperture membrane filter first, avoid too jam.

4. Disinfection: the membrane filter in front of the factory without disinfection, so should be sterilized before use. Disinfection way many, generally using thermal disinfection, which is 120 degrees steam sterilization for 30 minutes, thermal disinfection, steam jet to the membrane filter membrane and should be avoided to prevent negative pressure steam condensation due to compression of thin film on the back and damaged. You can also use boil disinfection and chemical disinfection methods.

5. Had better bubble when aseptic filtration method to test whether seal tightly, filtration membrane is damaged due to improper disinfection, bubble point pressure see provisional standards of quality.

6. When filtering the liquid membrane must be wetting state, if make a membrane into a dry state with disinfection, must use sterile water wetting, if bad wetting impact velocity, aseptic filtration membrane filter all appliances must be disinfected before, then in the sterile room aseptic filtration, should be strictly carried out in accordance with the aseptic operation procedures.

7.The membrane filter flammable not acidproof alkali, not resistant to solvents, is only applicable to aqueous solution (PH5-10) oil, air, fruit juice, wine, etc., before use must understand whether to have an impact on membrane filtration substances.

8. Use pressure, vacuum, potential difference, must pay attention to prevent bacteria in the air outside when pumping air into vacuum state, filtrate inhaled particles pollution. Pressure filtration, filtration speed faster, the higher the pressure, filtering and the faster the speed, high pressure filter should be considered the support of the body are in good condition.

Select membrane Notes:

Microporous membrane filter the main function of the intercept from the gas phase or liquid phase particles, bacteria and other impurities, to achieve the separation, purification, purification purposes. So choosing filtration film to consider the following factors:

1. The membrane filter material (chemical compatibility)

First of all to consider when choosing a microporous membrane filter chemical compatibility. Membrane filter is acid, alkali, organic solvents, such as detailed in membrane chemical compatibility tables.

2. The membrane pore size

To use 3 microns or larger bead filler of chromatographic column system, can use 0.45 mu m needle filter or filter membrane; To use less than 3 microns filler of chromatographic system, or involve microbial growth of chromatographic system, it is recommended to use 0.22 mu m membrane filter, for difficult turbid solution, you can use 1-5 microns of the membrane filter for filtering, then using corresponding to a membrane filter.

Transportation and storage:

Cellulose membrane filter as inflammables, during transportation and storage to stay away from fire.

Microporous membrane filter must be at room temperature and avoid light preservation under the condition of 60% relative humidity, if caused by dry membrane filtration crimp, then only can be used after soaking treatment.

About sales

My dear friends, if you need other type of Syringe filters , please leave me message or chat with me online.

Shipment : We will send out your order within 5 days via Fedex or EMS.

Usually it takes about 5-7 days on the way to worldwide, but sometimes some delay would happen out of our controls, hope you could wait in patience and understand this.

If you are not emergencies, you can also choose China Post air Mail, but you need to wait 20-45 days.

Problems: If there is any problems or defective, do not leave me negative feedback and please do not hesitate to contact me and i will do my best to assist you. And our items are all good quality and 100% Quality assurance.

And if you will buy my items in large quantities, please let me know, i will give you very good wholesale price and favorable postage. Come on

Quality Microporous Membrane Filter for sale
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