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www.restek.comSAMPLE HANDLING |
SAMPLE PREPARATION
Sample Filtration
M mbran s l ction guid
Cut costs, not quality!
Syringe filters are for laboratory use only.
Syring Filt rs
with Luer Lock Inlet
• Luer lock inlet offers leak-tight syringe connection.
• Variety of filter types, porosities, and diameters.
• Color coded for easy identification.
• Rugged polypropylene housing.
• Autoclavable to 121 °C for 15 minutes.
• Quantity break pricing for greater savings.
Cellulose Acetate, Nylon, PES, PVDF—hydrophilic applications
PTFE—hydrophobic applications
Membrane
Properties
Applications
Incompatible with
Cellulose Acetate hydrophilic
aqueous solutions
organic solvents
Nylon
hydrophilic,
low protein binding
bases, HPLC solvents, alcohols,
aromatic hydrocarbons
acids, aggressive halogenated
hydrocarbons, proteins
PES
hydrophilic, low protein binding,
fast flow rates
filtration of buffers & culture
media
—
PTFE
hydrophobic
organic solvents, acids,
alcohols, bases, aromatics
aqueous samples without pre-wetting
(to avoid high backpressure)
PVDF
hydrophilic, low protein binding alcohols, biomolecules
bases, esters, ethers, ketones
Price per 100-pack
Size
Porosity
Color
qty.
cat.#
1-4 packs 5-9 packs 10 or more packs
Cellulose Acetate
4 mm
0.22 µm
green
100-pk.
23972
4 mm
0.45 µm
blue
100-pk.
23973
13 mm
0.22 µm
red
100-pk.
26156
13 mm
0.45 µm
red
100-pk.
26155
25 mm
0.22 µm
red
100-pk.
26158
25 mm
0.45 µm
red
100-pk.
26157
30 mm
0.22 µm
red
100-pk.
23982
30 mm
0.45 µm
red
100-pk.
23983
Nylon
4 mm
0.22 µm
yellow
100-pk.
23970
4 mm
0.45 µm
pink
100-pk.
23971
13 mm
0.22 µm
pink
100-pk.
26146
13 mm
0.45 µm
pink
100-pk.
26147
25 mm
0.22 µm
pink
100-pk.
26148
25 mm
0.45 µm
pink
100-pk.
26149
30 mm
0.22 µm
pink
100-pk.
23980
30 mm
0.45 µm
pink
100-pk.
23981
PES (polyethersulfone)
4 mm
0.22 µm
white
100-pk.
23978
4 mm
0.45 µm
blue
100-pk.
23979
13 mm
0.22 µm
green
100-pk.
23966
13 mm
0.45 µm
green
100-pk.
23967
25 mm
0.22 µm
green
100-pk.
23968
25 mm
0.45 µm
green
100-pk.
23969
30 mm
0.22 µm
green
100-pk.
23988
30 mm
0.45 µm
green
100-pk.
23989
PTFE (polytetrafluoroethylene)
4 mm
0.22 µm
purple
100-pk.
23974
4 mm
0.45 µm
orange
100-pk.
23975
13 mm
0.22 µm
white
100-pk.
26142
13 mm
0.45 µm
white
100-pk.
26143
25 mm
0.22 µm
white
100-pk.
26144
25 mm
0.45 µm
white
100-pk.
26145
30 mm
0.22 ��m
white
100-pk.
23984
30 mm
0.45 µm
white
100-pk.
23985
PVDF (polyvinyldifluoride)
4 mm
0.22 µm
brown
100-pk.
23976
4 mm
0.45 µm
red
100-pk.
23977
13 mm
0.22 µm
blue
100-pk.
26150
13 mm
0.45 µm
blue
100-pk.
26151
25 mm
0.22 µm
blue
100-pk.
26152
25 mm
0.45 µm
blue
100-pk.
26153
30 mm
0.22 µm
blue
100-pk.
23986
30 mm
0.45 µm
blue
100-pk.
23987