Syringe Filters

Disposable Syringe Filters featuring:
• Polypropylene housing
• Leur-Lok’Ñ¢ and pressure fitting
• Convenient color coding system
• Broad filter material selection
• Ultrasonically bonded for reliability

Filter Materials Available:
• Cellulose mixed esters (MV)
• Cellulose acetate (CA) sterile/non-sterile
• Regenerated cellulose (RC)
• Polyamide/Nylon (PA)
• Polytetrafluoroethylene (PTFE)

• Polyvinylidene difluoride (PVDF)
• Polyester (PET)
• Glass Fiber (GF)
• Glass Fiber (GF)/polyester (PET)

All of the following filtration media are house
in a Polypropylene housing.


Cellulose mixed esters (MV)

This membrane is recommended for all filtrations
in aqueous or polar media.

Cellulose acetate (CA) sterile/non-sterile
Cellulose acetate filters show a very low binding
capacity for proteins.   These filters are available
in a sterile and a non-sterile package.

Regenerated cellulose (RC)
For filtration of polar and medium polar sample solutions.

Polyamide/Nylon (PA)
This is a hydrophilic material; it is recommended for filtration of aqueous or organic/aqueous medium polar liquids.

Polytetrafluoroethylene (PTFE)
PTFE membranes are hydrophobic; thus they are ideal
for the filtration of nonpolar liquids and gases. They are
very resistant towards all kinds of solvents as well as
with acids or bases. By flushing with alcohol, followed
by water, the originally hydrophobic membrane can be
made more hydrophilic.

Polyvinylidene difluoride (PVDF)
This membrane features a stability and hydrophobic interactions similar to PTFE.  It isrecommended especially for filtration of water-soluble oligomers and polymers, e.g. protein solutions.  It can also be used for the filtration of hydrophobic substances in different organic solvents.

Polyester (PET)
This membrane features an outstanding chemical
resistance and is suited for polar as well as non-polar solvents. This all purpose membrane is recommended for sterile filtration, filtration of aggressive media, for dust and aerosol analyses, ultra purification of solvents etc.   It is very well suited for TOC/DOC determination. The
membrane is not cytotoxic and does not inhibit the
growth of microorganisms and higher cells.

Glass Fiber (GF)
For viscose solutions or for turbid liquids.  Ideal for use
as a prefilter in series with other syringe filters.

Glass Fiber (GF)/polyester (PET)
Polyester membrane with integrated glass fiber prefilter, for strongly viscose solutions.

Three sizes are available: 25mm, 15mm, 3mm
Three Retention Rates are available:  0.20µm, 
0.45µm, 1.2µm

(Not all sizes and retention rates are available in
all media combinations.) Please contact sales & marketing for more details.

Leur-Lok™ is a trademark of B-D.