The microporous membrane filter is mainly used for the filtration
of mobile phase and samples during the chromatographic analysis,
especially for preventing chromatographic column and infusion pump
line system and sample valve from pollution. They are widely used
for gravimetric analysis, microanalysis, colloid separation and
sterility test. The filer membrane made of different materials,
such as polyetherdsulfone (PES), nylon6, Nylon66 MCE and
polytetrafluoroethylene (PTFE), PVDF etc. can be provided.
High quality nylon66 membranes are suitable for filtering aqueous
solutions and most organic solvents. The membranes are suitable for
use with a wide range of biological preparations and can be used
where other membranes are unsuitable or difficult to use.
Nylon66 membranes are hydrophilic, eliminating the need for wetting
agents that could be extracted when filtering aqueous solutions.
The membranes are flexible, durable and tear resistant, and can be
autoclaved at 121ºC. This kind of membrane is imported from
Filtration of aqueous and organic mobile phases
Filtration of tissue culture media, microbiological media, buffers
polyethersulfone (PES) membranes are hydrophilic, low protein
binding and stable in alkaline pH. Available in a 0.8µm pore size,
the PES membrane is recommended for aqueous applications and for
biological samples. They are also an alternative choice for users
requiring a filter that exhibits extremely low protein binding
characteristics. This kind of membrane is imported from MEMBRANA
company in Germany.
PTFE membranes are particularly suitable for preparing samples for
HPLC analysis. The hydrophobic nature of the membrane also has
applications for air and gas sterilization. The membrane is
laminated onto a non-woven polypropylene support web for improved
strength and handling and can be used at temperatures up to 150ºC.
PTFE is the membrane of choice for use with the aggressive
solvents, liquids and gases that can attack other membranes. It is
resistant to most acids, alkalis and solvents.
One of the major applications for the PTFE filter is the
clarification of corrosives, solvents and aggressive fluids. This
includes the important requirement in HPLC analysis for sample
filtration where any solid particles can cause permanent damage to
the column. The 0.45µm pore size is normally used.
Mixed Cellulose Ester (MCE)
Jinteng MCE membrane filters are modified to offer researchers the
lowest binding filters available. Due to the extremely low binding
characteristics, these filters provide higher throughputs than
competitive offerings and reduce filter changes when filtering
Because of their unique strength and extremely low binding
characteristics, Jinteng MCE membranes are ideal for protein and
enzyme filtrations, tissue culture media sterilization, cold
sterilization, biological fluid filtration and other filtration
applications where maximum recovery of proteins is critical.
Features and Benefits:
Lowest binding material available
Strength and dimension stability
Uniform pore structure
Protein and enzyme filtration, sterilization
Biological fluid filtration sterilization
Tissue culture media sterilization
Receptor binding studies
Enhanced recovery of fastidious gram positive organisms
We also have diameter 60mm, 58mm and so on. Various types is
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