S A M P L E P R... Centrifuge Filter Tubes

S A M P L E P R E P A R A T I O N Chrom Tech Filtration
Centrifuge Filter Tubes
Micro, Midi, and Maxi Spin centrifuge filters are very useful for small volume sample filtration.
Designed for use in centrifuges, the filter units consist of a sample chamber and receiver tube.
This tube has a marking area and is graduated. A cap serves the dual purpose of capping the
sample chamber during the centrifugation and the receiver tube after the sample chamber has
been removed. Each package is imprinted to identify the pore size and membrane type.
Micro-Spin Filter Tubes
Quickly and easily clarify small sample volumes with Chrom Tech's Micro-Spin®
centrifuge filter tubes. These devices fit in any standard microcentrifuge, and allow
you to process multiple samples simultaneously. Less than 5µL hold-up volume
provides near quantitative volumetric recovery. Maximum G-force: 10,000xG.
Micro-Spin centrifuge filter tubes now include glass prefilters.
FE AT U RE S


For up to 850 µL sample volumes
Polypropylene housings
Midi-Spin Filter Tubes
Midi-Spin® filter tubes consist of a polypropylene insert that houses a filter
membrane and a tapered 5.0ml filtrate tube. Inserts can accommodate sample
volumes up to 2ml. Maximum G-force: 5,000xG.
FE AT U RE S


For up to 5 mL sample volumes
Polypropylene housings
Maxi-Spin Filter Tubes
Maxi-Spin® centrifuge filter tubes remove particulates from larger sample sizes
with any centrifuge that holds 50 mL conical tubes. They should only be used with
a fixed-angle rotor centrifuge to prevent premature clogging of the membrane.
Maximum operating temperature: 50º C. Maximum G-force: 2,500xG.
FE AT U RE S



For up to 25 mL sample volumes
Polypropylene housings
Used with fixed angle rotor centrifuge
© 2 0 1 4 C h rom Te c h , In c .
P rod u c t n a m e s a re tra d e m a r ks o r reg ist ered
t r a d e m a rks of the i r re sp e c ti ve co mpanies
Pub . No . : 8 9 0 0 0
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Chrom Tech Filtration S A M P L E P R E P A R A T I O N
Centrifuge Filter Tubes (continued)
M E M BR A N E
PO R E SIZ E
MICRO 100/pk
MID I 25/pk
MAXI 50/pk
Cellulose Acetate
0.2 µm
CTF-CA020-01
CTF-CA020-02
CTF-CA020-03
0.45 µm
CTF-CA045-01
CTF-CA045-02
CTF-CA045-03
0.2 µm
CTF-NC020-01
CTF-NC020-02
CTF-NC020-03
0.45 µm
CTF-NC045-01
CTF-NC045-02
CTF-NC045-03
0.2 µm
CTF-NY020-01
CTF-NY020-02
CTF-NY020-03
0.45 µm
CTF-NY045-01
CTF-NY045-02
CTF-NY045-03
0.2 µm
CTF-PS020-01
CTF-PS020-02
CTF-PS020-03
0.45 µm
CTF-PS045-01
CTF-PS045-02
CTF-PS045-03
0.2 µm
CTF-PP020-01
CTF-PP020-02
CTF-PP020-03
0.45 µm
CTF-PP045-01
CTF-PP045-02
CTF-PP045-03
0.2 µm
CTF-PT020-01
CTF-PT020-02
CTF-PT020-03
0.45 µm
CTF-PT045-01
CTF-PT045-02
CTF-PT045-03
0.2 µm
CTF-PV020-01
CTF-PV020-02
CTF-PV020-03
0.45 µm
CTF-PV045-01
CTF-PV045-02
CTF-PV045-03
0.2 µm
CTF-RC020-01
CTF-RC020-02
CTF-RC020-03
0.45 µm
CTF-RC045-01
CTF-RC045-02
CTF-RC045-03
NC (Nitrocellose)
Nylon
Polyethersulfone
Polypropylene
PTFE (polytetrafluoroethylene)
PVDF (polyvinylidene diffuoride)
Regenerated Cellulose
Membrane Selection Guide
RC
Nylon
Regenerated Cellulose (RC) is a hydrophilic, solvent resistant, low protein binding membrane. Ideal for removing
particulates from HPLC samples prior to injection. Compatible with all HPLC solvents. Use for particle removal
and degassing of solvents. RC membranes are also compatible with aqueous solutions in the 3 to 12 pH range.
Extractables with water are less than 1%. RC membranes exhibit low, non-specific adsorption — good for biological
sample filtration where maximum protein recovery is important. When used with a glass prefilter, RC is ideal for tissue
culture media filtration, as well as general biological sample filtration.
Commonly used for general laboratory filtration and filtration of HPLC samples prior to injection. Nylon is solvent
resistant and exhibits low extractables. Nylon binds protein and should not be used when protein recovery is important.
PTFE
PTFE (polytetrafluoroethylene) is a hydrophobic and chemically resistant to all solvents, acids and bases. Does not
impart extractables to the filtrate. PTFE blocks water vapor, making it ideal for transducer protectors. Also ideal for
filtering and degassing chromatography solvents.
PVDF
PVDF (polyvinylidene diflouride) is a hydrophilic, solvent resistant membrane that exhibits low levels of UV adsorbing
extractables. Use for HPLC sample filtration and general biological filtration. PVDF is a low protein binding membrane.
Polypropylene
Polypropylene is a hydrophilic membrane that exhibits a wide range of chemical compatibility to organic solvents.
A good choice for HPLC sample filtration when performing chromatography protein analysis. High solvent resistant.
Low non-specific adsorbing membrane for maximum protein recovery in critical analysis. Also well suited for
biological sample filtration.
Glass
Microfiber
Glass Microfiber membranes are commonly used as pre-filters to remove large particulates and extend the load
capacity of the membrane.
Cellulose
Acetate
Cellulose Acetate is a very low protein binding membrane, ideal for aqueous based samples. CA membranes are an
excellent choice when maximum protein recovery in filtrate is critical. Laboratory studies show the CA membranes
bind less protein that PVDF. When used with a glass pre-filter, CA is ideal for tissue culture media filtration and
sensitive biological samples. The pre-filter increases yield.
NC
NC (Nitrocellulose - Mixed Esters (ME) - unsupported filters are hydrophilic and composed of a mixture of inert
cellulose nitrate and cellulose acetate polymers. The uniform microporous structure of these filters provides the
fastest flow rates and highest throughputs available in a membrane filter. Because they are biologically inert, NC
filters are ideal for a wide range of clarification, sterilization, and analytical applications.
PS
PS (Polyethersulfone) is the filter of choice for tissue culture work. It has very low extractables. Low binding of
protein and nucleic acids. It has relatively broad chemical resistance except to aggressive solvents and it has good
to excellent flow rates.
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S A M P L E P R E P A R A T I O N Chrom Tech Filtration
Forensic Spin Tubes
Our kit includes a 800 µL filter basket and a 2.0 mL microcentrifuge receiver tube
with attached cap. The 1.4 mm mesh acts as a sieve to retain cloth samples and
pass fluids to the receiver tube.
FE AT U RE S



800 µL capacity
Extracts fluids from cloth samples
Polypropylene housing
DE SCRI P T I O N
QTY
PART N O
Forensic Spin Tube
100
CTF-FS000-01
Membrane Filters
We offer a wide variety of precut membranes in Nylon, Cellulose Acetate, PVCF,
PS, Nitrocellose and PTFE to suit your application needs. All are available in
sizes ranging from 13 mm to 142 mm.
M E M BR A N E
PORE
SIZE
13 mm
100/pk
2 5 mm
100/pk
47 mm
100/pk
90 mm
25/pk
142 m m
25/pk
Cellulose
Acetate
0.2 µm
CTF-CA020-13
CTF-CA020-25
CTF-CA020-47
CTF-CA020-90
CTF-CA020-142
0.45 µm
CTF-CA045-13
CTF-CA045-25
CTF-CA045-47
CTF-CA045-90
CTF-CA045-142
Glass Fiber
0.7 µm
CTF-GF070-13
CTF-GF070-25
CTF-GF070-47
CTF-GF070-90
N/A
1.0 µm
CTF-GF100-13
CTF-GF100-25
CTF-GF100-47
CTF-GF100-90
N/A
3.1 µm
CTF-GF310-13
CTF-GF310-25
CTF-GF310-47
CTF-GF310-90
N/A
NC
Nylon
PS
PTFE
PVDF
5.0 µm
CTF-GF500-13
CTF-GF500-25
CTF-GF500-47
CTF-GF500-90
N/A
0.2 µm
CTF-NC020-13
CTF-NC020-25
CTF-NC020-47
CTF-NC020-90
CTF-NC020-142
0.45 µm
CTF-NC045-13
CTF-NC045-25
CTF-NC045-47
CTF-NC045-90
CTF-NC045-142
0.2 µm
CTF-NY020-13
CTF-NY020-25
CTF-NY020-47
CTF-NY020-90
CTF-NY020-142
0.45 µm
CTF-NY045-13
CTF-NY045-25
CTF-NY045-47
CTF-NY045-90
CTF-NY045-142
0.2 µm
CTF-PS020-13
CTF-PS020-25
CTF-PS020-47
CTF-PS020-90
CTF-PS020-142
0.45 µm
CTF-PS045-13
CTF-PS045-25
CTF-PS045-47
CTF-PS045-90
CTF-PS045-142
0.2 µm
CTF-PT020-13
CTF-PT020-25
CTF-PT020-47
CTF-PT020-90
CTF-PT020-142
0.45 µm
CTF-PT045-13
CTF-PT045-25
CTF-PT045-47
CTF-PT045-90
CTF-PT045-142
0.2 µm
CTF-PV020-13
CTF-PV020-25
CTF-PV020-47
CTF-PV020-90
CTF-PV020-142
0.45 µm
CTF-PV045-13
CTF-PV045-25
CTF-PV045-47
CTF-PV045-90
CTF-PV045-142
distributed by
[
800.822.5242 | (MN) 952.431.6000
sales@chromtech.com | www.chromtech.com
]