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Dongguan Boye Instrument & Machinery Equipment Co., Ltd
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HomeProductsMembrane FilterPP Membrane FilterPP sterile membrane filter
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  • PP  sterile  membrane filter
  • PP  sterile  membrane filter
  • PP  sterile  membrane filter
  • PP  sterile  membrane filter
  • PP  sterile  membrane filter
  • PP  sterile  membrane filter

PP sterile membrane filter

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Product Attributes

Model No.Diameter: 13mm-400mm

BrandBOYELAB

Polypropylene membranes exhibit broad chemical compatibility and utility in a wide range of applications. Our portfolio includes both a hydrophobic and hydrophilic version which allows the membranes to be used with both aqueous and organic samples.

The hydrophobic polypropylene membrane is a pure polymer which results in high chemical stability and minimizes the concern over extractables. Additional features of the membrane include resistance to high temperatures and the ability to be autoclaved. Available in a 0.1 µm pore size, the hydrophobic polypropylene membrane is ideal for the filtration of aggressive solvents. Compared to PTFE membranes, this material is a more economical option for use in venting applications, which require the exchange of air and gas but cannot allow liquids to pass through the membrane.

The hydrophilic nature and broad chemical compatibility of the membrane allows for the efficient filtration of both aqueous and organic solutions resulting in maximum versatility. When used in analytical Sample Preparation applications, the membrane will not yield extractables or add artifacts to the sample for analysis. For biological samples, the hydrophilic polypropylene membrane gives high recoveries of critical proteinaceous samples and confers low, non-specific binding. In screening applications where membrane background interference is a concern, our hydrophilic polypropylene membrane yields extremely low levels of autofluorescence.


Available Diameter: 13mm-400mm

Pore Size: 0.1, 0.2, 0.45, 0.8µm

Selecting Membranes for Your Applications

1. Determine the particle size to be retained or filtered. Membrane will retain all particles equal to and larger than their
designated pore size.

2. Assess the chemical compatibility of the Membrane Filter with the liquid or gas to be filtered. Consider the chemical
resistance properties of all parts that will contact the filter.

3. Consider hydrophilic or hydrophobic membrane; temperature, flow rate, throughput, and sterilization needs.

*Nylon66/Polyamide (NY).

Hydrophilic membrane. Resistant to a range of organic solvents. Suitable for use with high pH samples. Binds
proteins, which makes it unsuitable for protein recovery applications.

* Polytetrafluoroethylene(PTFE).

Hydrophobic membrane. Resistant to organic solvents as well as strong acids and bases. Low protein binding. Low in
extracts. Main applications are the filtration of non-aqueous samples. Prior to filtering of aqueous samples the
membrane must be pre-wetted with a water-miscible organic solvent.

Hydrophilic Polytetrafluoroethylene (PTFE L).

Hydrophilic PTFE membranes are unsupported membrane that ideal for HPLC and mixtures of aqueous and organic
solvents. Use with both aqueous and organic solvents, along with their mixtures.

* Polytetrafluoroethylene( PES ).

Hydrophilic membrane. Broad solvent compatibility. Suitable for filtration of aqueous and compatible organic
solvents. Higher liquid flow than either PTFE or PVDF. Low in extracts. Low protein binding.

* Cellulose acetate (CA).

Hydrophilic membrane. Limited solvent resistance. Very low protein binding capacity, which makes it an excellent
choice for protein recovery applications.

* Polyvinylidene difluoride (PVDF)

Hydrophobic membrane. Fast flow rate and very low protein binding. Generally compatible with most common
solvents. Ideal for protein recovery applications.

* Mixed Cellulose Esters(MCE).

Hydrophilic MCE membranes. Biologically inert mixture of Cellulose Acetate and Cellulose Nitrate membranes which
have higher protein binding than CA for most proteins. High porosity provides high flow rate. Good use for aqueous
based samples.

* Glass microfiber/glass fiber (GMF/GF).

Hydrophilic material. Excellent compatibility with organic solvents and strong acids (apart from hydrofluoric acid) and

bases. Either used as a prefilter or as a final filter.

* Polypropylene (PP).

Slightly hydrophobic membrane. Resistant to a wide range of organic solvents. Also good choice used as a prefilter

or as a final filter.


Looking for ideal Lab Membrane Filter Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Disc Membrane Filter are quality guaranteed. We are China Origin Factory of 25MM PP Membrane Filter. If you have any question, please feel free to contact us.

Product Categories : Membrane Filter > PP Membrane Filter

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