Syringe filters

For the ready-to-use filter units only virgin raw material is used. This ensures that there is no interaction with the sample to be filtered, provided that the units are used properly. The filter units are intended for laboratory use only and at temperatures up to 60°C.
Note: If syringes with a volume <10 ml are used, a pressure could be created which exceeds the max. operating pressure (700 kPa/7 bar) of the filter unit. EtO-sterilized = endotoxin free according to LAL-Test (USPXXIII), Sensitivity: 0.25EU/ml.

• Inlet female luer-lock
• Outlet luer cone or extended tip
• Autoclavable at 121°C

Hydrophilic membrane for aqueous and light organic solutions with a low binding capacity for proteins.

Turbidity elimination before photometric analysis (without digestion).

• Sample preparation set: 2 syringes 20 ml, 25 CHROMAFIL^® membrane filters
• Membrane filters CHROMAFIL^® without accessories

Accessories Photometer NANOCOLOR® VIS II / NANOCOLOR® UV/VIS II Alternative Syringe filter CHROMAFIL®, Glass-fibre (GF)

For the ready-to-use filter units only virgin raw material is used. This ensures that there is no interaction with the sample to be filtered, provided that the units are used properly. The filter units are intended for laboratory use only and at temperatures up to 60°C.
Note: If syringes with a volume <10 ml are used, a pressure could be created which exceeds the max. operating pressure (700 kPa/7 bar) of the filter unit. EtO-sterilized = endotoxin free according to LAL-Test (USPXXIII), Sensitivity: 0.25EU/ml.

• Inlet female luer-lock
• Outlet luer cone or extended tip
• Autoclavable at 121°C

Suitable for HPLC sample filtration (water-based) and aggressive water solutions such as acids and alkalis.

CHROMAFIL^® syringe filters are used for filtration of suspended matter from liquid samples. HPLC-Certification available on the internet
Polypropylene housing
Better solvent stability compared to acrylate and polystyrene filters
Shells ultrasonically sealed, not glued
No extractable components from glues
Filtration in both directions possible, the liquid cannot bypass the membranes
Luer lock on side of entry
Safe connection on the "high pressure" side
Luer exit
Standard luer for 3mm and 25mm filters, minispike luer with low dead volume and small OD for 15mm filters
Deflector
The stream of liquid is broken and distributed, and does not directly hit the membrane: this prevents rupture of the membrane
Star-shaped distribution device
The liquid is evenly distributed to the whole membrane surface: this results in a better utilisation of the total area; the filter is not rapidly clogged up; high flow efficiency
Colour coded
Filters with 0.2µm pores have a yellow upper housing, for filters with 0.45µm pores this is colourless; the different membrane types are distinguished by different colours
Low dead volume
~80µl for 25mm, 35µl for 15mm, 5µl for 3mm.

Specifications
The membrane housing consists of polypropylene (PP). This material is very resistant towards most solvents and has a very low extractable substances content. Thus it can be used with almost all solvents, acids and bases (see table). The especially thick rim of the housing is ideal for use with laboratory robots (e.g. Benchmate™). Filter inlet and filter outlet can be fitted to the CHROMABOND^® columns for selective sample preparation with the aid of a special adaptor. All filters can be autoclaved at 121°C and 1.1bar for 30min.

Chromafil™Xtra:
Labelled for method validation and certification. Colour-free plain polypropylene housing. Imprint for direct identification of the membrane type, diameter and pore size.
Hydrophilic membrane. This membrane is recommended for all filtrations of aqueous or polar organic samples.

Alternative Syringe filters Puradisc™ FP30

SEPARA integrates in one single device auto-sampler vial, filtration membrane, plunger, and cap/septa. The single step filtering process is efficient and saves time. Fast and simple to use. Reducing sample loss. After filtration the sample is ready to use in most standard autosampler. The pre-slit cap ensures easy and clean transfer of sample. 5 different septa material, PP vial with Ø 12 x 33 mm, Filtering capacity 0.48 ml, dead volume <30 µl, maximum operating temperature 50 °C

PP monofilament depth filters for use as prefilters or for the filtration of samples in water or organic solvents. The high loading capacity allows the purification of solutions with a high particle load.

• Choice of filtration areas and porosities
• Maximum operating pressure 4.1 bar forward, 3.0 bar reverse
• Capsules may be used in either direction
• Low hold-up volume with air purge
• Autoclavable
• Operating temperature max. 60 °C
• Connectors: stepped barb (SB), hose barb (HB) and female national pipe thread (FNPT)
• Filter PP

Alternative Disposable Filtration Capsules, Polycap TF™

Hydrophobic PTFE membrane for applications involving organic solvents and chemically aggressive solutions.

• Maximum operating pressure of 4.1 bar forward and 3.0 bar reverse
• 1 µm capsules incorporate a PP prefilter
• Autoclavable up to 132 °C maximum
• Connectors: stepped barb (SB) and female national pipe thread (FNPT)

Alternative Disposable Filtration Capsules, Polycap HD™, PP

Mounted in a robust PP housing. All have a low hold-up volume. Dimensions: (diameter x length) 53 x 46 mm. Connections: For 6 to 10 mm diameter bore tubing. Also accept male luer slip.

• 0.2 and 0.45 µm membranes are polyethersulphone
• 1 µm membrane is nylon
• Maximum operating pressure 4.1 bar
• Glass microfibre prefilter with all pore sizes
• Supplied radiation sterilized with cap on outlet.
• Can be autoclaved once at 131°C for 20 min.

Polycap TC filtration capsules feature dual layer polyethersulfone (PES) membranes and provide efficient filtration for aqueous solutions.

• 100% integrity-tested during manufacturing
• Polypropylene housing thermally fused to eliminate surfactants and mold releasing agents that could affect analysis
• Manufactured according to ISO9001:2008 QMS standards
• Available in sterile versions with a filling bell option
• PES membranes protein adsorption characteristics: HAS 0.4 µg/cm²; Insulin 2.0 µg/cm²; gammaglobulin 1.5 µg/cm²
• Connectors: stepped barb (SB)

Alternative Disposable Filtration Capsules, Polycap HD™, PP Alternative Disposable Filtration Capsules, Polycap TF™

The Anopore^® inorganic membrane consists of high-purity aluminium oxide and can be used for a wide range of applications. This unique material has a precise, non-deformable, honeycomb structure with a relatively consistent pore size that guarantees very efficient particle retention. In addition, the membrane has a low protein binding capacity, minimal autofluorescence, is non-toxic and supports cellular growth.

• Anotop^® 10 Plus / 25 Plus contains a glass microfiber prefilter
• Housing: PP
• Extractable materials: low
• Inlet connection: Female luer lock
• Outlet connection: Male slip luer

Housing diameter:	10 mm
Housing material:	PP
Extractable substances:	low
Retained volume:	< 20 µl