Filtration apparatus

The Whatman Mini-UniPrep™ filter provides a quick and easy means of removing particles from HPLC samples. In comparison to other methods the amount of time required for sample preparation is reduced to one third. Mini-Uni-Prep™ is a ready-to-use filter unit consisting of a 0.4ml chamber and a plunger. The plunger contains a filtration membrane at one end and a cap with septum at the other. The plunger is pressed through the sample in the chamber. The pressure generated forces the filtrate into the plunger reservoir, with air escaping through the vent hole until the locking mechanism engages to form an airtight seal. The unit can now be placed in any autosampler and the sample analysed.

For 47mm diameter membrane filters. With reservoir barrel allowing up to 200ml of liquid to be filtered by connection to a suitable direct pressure source. Can also be used for filtering larger volumes in conjunction with a 5L pressurising container. Complete with silicone O-rings and 10mm diameter tubing ferrules on the inlet and outlets. For sterile filtration of tissue cultures, ultrafiltration of buffer solutions, cell count solutions and for pressing soil samples.

For 142 mm diameter membrane filters. With large capacity barrel allowing up to 2 litres of liquid to be filtered by connection to a suitable direct pressure source. For preparing sludge or separating suspended matter from waste water samples, or sterile filtration of liquids that are difficult to filter, e.g. serum. Filtration surface area: 130 cm². Maximum pressure 7 bar. The holder is supplied complete with a back pressure screen.

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

• Funnel Volume 250 ml
• to be used with Ø 47/50 mm membranes and Ø 40 mm pre-filter
• silicone cap and venting nozzle included in scope of supply
• GV 050A-Types equipped with rapid closure clamp

• With lip seal
• Temperature resistant to 140°C
• Only suitable for DURAN^® laboratory bottles

Amicon® ultra centrifugal filters promote high sample recovery, even in diluted samples, through ultrafiltration and also provide fast sample processing. Particularly suitable for sensitive downstream applications as the centrifugal filters provide the fastest and most efficient concentration. The Ultracel-30 centrifugal filters have a NMWL (Nominal Molecular Weight Limit) of 30 kDa.

Features & Benefits:

• Prevents turning to dryness
• Provides a predictable concentration factor
• No calibration is necessary to run multiple samples in parallel
• Vertical membrane aligned with filtrate instead of vertical for loss constipation, less waste and faster filtration
• 25 to 80 times the concentration in one step
• Wide chemical compatibility, heat-sealed membrane and compatible with pH 1-9
• Maximum sample recovery as Ultracel® low-bund membrane > 90 % recovery
• Centrifuge your valuable sample with security in a robust, slim unit that prevents leakage

Ready-to-use funnels and filters in one. Milliflex® filter units combine a sterile gridded membrane filter with a sterile funnel.

Amicon® ultra centrifugal filters promote high sample recovery, even in diluted samples, through ultrafiltration and also provide fast sample processing. Particularly suitable for sensitive downstream applications as the centrifugal filters provide the fastest and most efficient concentration. The Ultracel-100 centrifugal filters have a NMWL (Nominal Molecular Weight Limit) of 100 kDa.

Features & Benefits:

• Prevents turning to dryness
• Provides a predictable concentration factor
• No calibration is necessary to run multiple samples in parallel
• Vertical membrane aligned with filtrate instead of vertical for loss constipation, less waste and faster filtration
• 25 to 80 times the concentration in one step
• Wide chemical compatibility, heat-sealed membrane and compatible with pH 1-9
• Maximum sample recovery as Ultracel® low-bund membrane > 90 % recovery
• Centrifuge your valuable sample with security in a robust, slim unit that prevents leakage

High sample recovery by ultrafiltration, even in diluted samples, and fast sample processing are offered by Amicon® ultra-centrifugal filters. The centrifugal filters, for fastest and most efficient concentrations, are specially designed for sensitive downstream applications. The Ultracel-10 centrifugal filters have a NMWL (Nominal Molecular Weight Limit) of 10 kDa.

Features & Benefits:

• Prevents rotation to dryness
• Providing a predictable concentration factor
• No calibration necessary if several samples are to be run in parallel
• Vertical membrane, aligned with filtrate
• Less clogging, faster filtration and less waste

• Robust, slim unit that prevents leakage

Amicon® ultra centrifugal filters promote high sample recovery, even in diluted samples, through ultrafiltration and also provide fast sample processing. Particularly suitable for sensitive downstream applications as the centrifugal filters provide the fastest and most efficient concentration. The Ultracel-3 centrifugal filters have a NMWL (Nominal Molecular Weight Limit) of 3 kDa.

Features & Benefits:

• Prevents turning to dryness
• Provides a predictable concentration factor
• No calibration is necessary to run multiple samples in parallel
• Vertical membrane aligned with filtrate instead of vertical for loss constipation, less waste and faster filtration
• 25 to 80 times the concentration in one step
• Wide chemical compatibility, heat-sealed membrane and compatible with pH 1-9
• Maximum sample recovery as Ultracel® low-bund membrane > 90 % recovery
• Centrifuge your valuable sample with security in a robust, slim unit that prevents leakage

The EZ-Pak® system with the Microfil® filter system contains sterile, ready-to-use funnels. These are in a convenient dispenser with a special filtration support to facilitate processing. Preparatory steps do not have to be observed, as they are not required here. The special "Push-Fit" funnel ensures perfect sealing without clamps.

Durapore® PVDF membranes are characterized by high throughput and high flow rate. To maximize recovery and minimize interaction with your sample, the membrane has very low protein binding.

Features & Benefits:

• Chemical compatibility
• Automation compatible
• Suitable for: Receptor/Ligand Binding Assay, Protein Kinase/Phosphatase Precipitation Assays, Bead-Based Assay

The Stericup® E and Steritop® E sterile vacuum systems are the latest addition to the Stericup® Quick Release family and reduce plastic and packaging by up to 69% by saving the filter funnel. The funnel-less filter products are suitable for use in sterile vacuum filtration of aqueous solutions such as media, tissue culture reagents and buffers.

• Fast flow rates and low protein binding
• Quick Release: unscrewing the bottle with only a quarter turn
• Easy labeling due to frosted writing surface/bright cap color
• Fits to all commercially available media bottles/sterile glass bottles with 38 mm/45 mm thread
• Gamma sterilized

The Stericup® vacuum filtration system combines a filtrate collection bottle with a Steritop™ filter unit. The stability of the unit during filtration is improved by the conical shape of the collection bottle. This makes handling much easier. Even for use under laminar flow conditions the slim, compact shape is qualified. Stacking the closed bottles on top of each other is feasible, thanks to the slightly curved bottom.

Features & Advantages:

• Filtration and storage from 150 ml to 1000 ml possible

The Millipore glass filter holder was developed especially for the filtration of various liquids. However, the filter can also be used for other purposes such as HPLC solvent production. The vacuum connection is integrated on the filter holder base and the piston cap, above the filtrate outlet level. This prevents the filtrate from accidentally entering the vacuum tubes.

The Biopak® final filter is a disposable ultrafiltration module that is installed directly at the extraction point of Milli-Q water treatment systems. The filter produces pyrogen and nuclease-free ultrapure water for up to three months. The final filter consists of a white ABS housing and polysulfone hollow fibers.

Features & Advantages:

• Pyrogen-free water (< 0.001 EU/ml)
• RNase-free (< 1 pg/ml) and DNase-free water (< 5 pg/ml)
• Bacteria-free water (< 0.1 CFU/ml)
• Direct installation on all Type I water treatment systems from Merck Millipore
• Maintenance-free

For cell culture, Greiner Bio-One offers standard and filter cap cell culture flasks with growth areas of four different sizes. Suspension culture flasks complete the range in another sizes.They are made of high-grade polystyrene. The special design of our cell culture flasks makes it possible to efficiently reach the cell lawn with a cell scraper, whilst still providing optimal access with a pipette. The special neck
design reduces the risk of wetting the inside of the cap with medium, thus providing additional protection against contamination. The stacking rim on the top of the flasks ensures firm standing and easy stackability in the incubator.

Properties:

• Improved cell adhesion through physical surface treatment
• Cell culture flasks with filter screw cap
• Canted neck
• Graduation on both sides
• Sterile and user-friendly packaging
• 25 cm², 75 cm² and 175 cm² growth areas
• High and flat design of the 175 cm² cell culture flask for variability of media volume

Amicon® ultra centrifugal filters promote high sample recovery, even in diluted samples, through ultrafiltration and also provide fast sample processing. Particularly suitable for sensitive downstream applications as the centrifugal filters provide the fastest and most efficient concentration. The Ultracel-50 centrifugal filters have a NMWL (Nominal Molecular Weight Limit) of 50 kDa.

Features & Benefits:

• Prevents turning to dryness
• Provides a predictable concentration factor
• No calibration is necessary to run multiple samples in parallel
• Vertical membrane aligned with filtrate instead of vertical for loss constipation, less waste and faster filtration
• 25 to 80 times the concentration in one step
• Wide chemical compatibility, heat-sealed membrane and compatible with pH 1-9
• Maximum sample recovery as Ultracel® low-bund membrane > 90 % recovery
• Centrifuge your valuable sample with security in a robust, slim unit that prevents leakage

Used for large volumes of aqueous samples. Presterilized. Contains a nylon membrane which is inherently hydrophilic, has low extractables, is bio-safe and has excellent flow rates. A glass microfibre prefilter ensures a long working life for the main filter and allows the easy filtration of large volumes and difficult samples.

• Connectors: stepped barb (SB) and female national pipe thread (FNPT)
• Filter: GMF/Nylon