Filters are essential in research laboratories and many other industries for removing particulates and creating environments conducive to a wide array of experiments and procedures. The devices come in different forms including in-line filters, paper discs, small capsules, and large ventilation panels. Filters also purify and concentrate the liquids and gases required for testing. For air, this means removing pollution, moisture, and solid airborne particulates; for liquids, this means removing impurities and small contaminants.
Inline gas filters, Click-On™
Supplier: Thermo Fisher Scientific
This in-line filter removes contamination from gas with easy-to-use filters. Reuseable end-fittings containing needle valves remain installed during filter changes, preventing contamination and reducing the cost of clean gas.
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Glass microfibre filters without binder, grade 934-AH, Whatman™
Supplier: Whatman products (Cytiva)
These borosilicate glass filters are specified for water pollution monitoring, cell harvesting, liquid scintillation counting and air pollution monitoring. They are often used in total suspended solids analysis.
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Aerosol analysis monitors
Supplier: Merck
The PS monitor is used for sample collection and particle analysis. The PP monitor is used for microscopic particle analysis and sample collection for HPLC and UV detection.
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Ultrafiltration devices, Centrifree®
Supplier: Merck
The Centrifree® Ultrafiltration device with Ultracel® regenerated cellulose membrane is ideal for separating free from bound microsolutes in serum, plasma, and other biological samples. The device is licensed for research use and in vitro diagnostic use. It holds a sample volume of 1 ml with a hold-up volume of 10 µl.
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Positive pressure filters, AcroCap™, Supor® membrane
Supplier: Cytiva (Formerly Pall Lab)
Supor® hydrophilic polyethersulfone (PES) membrane, acrylic housing: 0,2 µm vent. Positive pressure filtration of aqueous laboratory solutions. For sterilisation or clarification of up to three litres of serum-free cell and tissue culture media, media additives and other aqueous solutions. Ideal for sterilisation of solutions that tend to foam when filtered under vacuum.
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Glass microfibre filters, 934-AH™ RTU, Whatman™
Supplier: Whatman products (Cytiva)
These 934-AH™ RTU grade filter papers have been pre-washed, dried (or ignited), cooled, desiccated and weighed, which eliminates the pre-treating steps that are otherwise required by the US EPA Laboratory Standard Method 2540 parts C, D, and E. These filter papers are widely used for dissolved, suspended and volatiles solid analysis. They are also used as a wastewater filter for a wide range of water monitoring applications including the monitoring of rivers, lakes and coastal waters, as well as analysing purified discharge of wastewater treatment plants and monitoring discharge water from industrial plants.
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spin columns, C18
Supplier: G-Biosciences
These C18 spin columns are ready-to-use micro centrifuge columns for peptide clean up and concentration. The columns consist of porous C18 reverse-phase resin that has a particle size of ~15 µm and a pore size of 300 Å. The resin offers highly efficient binding and recovery of peptides and is ideal for mass spectrometry and other peptide related applications.
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Depth filter capsules, Supracap™ 100
Supplier: Cytiva (Formerly Pall Lab)
Supracap™ 100 depth filter capsules with PP housing are scalable capsules with Seitz® high performance depth filter media. They are suitable for process development and pilot scale applications.
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Syringe filters, Acrodisc®, PTFE membrane
Supplier: Cytiva (Formerly Pall Lab)
Exceptional chemical and temperature compatibility. Ideal for filtration of gas and organic solvents. Prevent spurious peaks on chromatograms allowing accurate experimental results. HPLC certified for low level of UV-absorbing extractables.
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Glass microfibre filters with binder, grade GF 92, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade GF 92 glass microfiber filters from Cytiva are designed for prefiltration in order to protect against membrane fouling. Grade GF 92 is strengthened with an inorganic binder.
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Steriflip® Bottle Top Vacuum Filtration Systems, Nylon Net Filter
Supplier: Merck
The Steriflip® filter unit performs vacuum assisted, closed system ensures sample sterility while enabling fast separation of large volumes of cellular material for efficient recoveries. It also eliminates messy pouring during sample transfer. Filters come in different pore sizes that are ideal for cell isolation.
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ReadiUse™ Spin Filter (5), 10KD
Supplier: AAT Bioquest
ReadiUse™ 10 Kd spin filter is a disposable ultrafiltration device for the concentration of biological samples such as antibodies.
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Filter discs
Supplier: Lenz Laborglas GmbH & CO.KG
Glass filter discs centred with unfused rim.
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Fluid Contamination Monitors, 37 mm
Supplier: Merck
Fluid Contamination Analysis Monitors are transparent, disposable filter holders made from Tenite® plastic and pre-assembled with MF-Millipore filters (effective filtration area is 9 cm²).
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Cartridge for Ultrapure water systems, Simplicity®
Supplier: Merck
Filter cartridge, Type: SimpliPak® 2 cartridge (for "clean" DI water feed)
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Filter capsules with Versapor® membrane
Supplier: Cytiva (Formerly Pall Lab)
Versapor® acrylic copolymer membrane, PC housing. For prefiltration of particulate liquids (such as serum) prior to final sterilisation filtration and for non critical final filtration.
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Seed testing papers, grade 181, Whatman™
Supplier: Whatman products (Cytiva)
Grade 181 support filter for seed tests using copenhagen tank system.
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Macrosep® Advance Centrifugal Devices
Supplier: Cytiva (Formerly Pall Lab)
These centrifugal devices can quickly concentrate up to 20 ml of biological sample without valuable sample loss.
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Centrifugal devices, Microsep™ Advance
Supplier: Cytiva (Formerly Pall Lab)
These centrifugal devices provide a precise, quick recovery of microlitre volumes of concentrate.
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Nozzle protection filters for single channel pipettes
Supplier: Socorex Isba
In-line filter, Pk: 50
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Cartridges for bowl-style systems, Milli-Q and Milli-RO
Supplier: Merck
Replacement cartridges for Milli-Q and Milli-RO 3- and 4-bowl style systems are available individually or in convenient ultrapure cartridge kits.
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Grade 0858 seed test paper, Whatman™
Supplier: Whatman products (Cytiva)
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc.; also applied in filter presses or for the aspiration of liquids.
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Groundwater sampling filter capsules, GWV
Supplier: Cytiva (Formerly Pall Lab)
GWV High capacity capsules are designed for the preparation of groundwater samples for dissolved metals analysis. 42 Metals Analysis Certification is printed on each package.
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Cartridges for water purification system, Milli-DI™
Supplier: Merck
Filter cartridge, DI-PAK purification pack, large (3,2 l of resin), for Milli-DI™ system
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Membrane dialysis discs and sheets, Spectra/Por®
Supplier: Spectrum Laboratories
Pre-cut membrane discs are used with Spectra/Por® MacroDialyzers and Equilibrium Dialyzers.
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Bottle top vacuum filtration systems, Millicup™
Supplier: Merck
Millicup™ membrane filter units are non sterile universal bottle top vacuum filters, used for sterile filtration.
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Centrifugal devices, Nanosep® and Nanosep® MF
Supplier: Cytiva (Formerly Pall Lab)
These devices are used for simple, reliable concentrating and desalting of 50 to 500 μl samples. Select the low protein binding Omega™ membrane for ultrafiltration applications. The Bio-Inert® membrane is ideal for microfiltration of biological solutions. The GHP membrane is ideal for sample preparation in analytical chemistry (HPLC, GC, IC and MS). It is suitable for aqueous, organic and aggressive organic samples, and for rapid processing of samples.
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Seed testing papers
Supplier: Whatman products (Cytiva)
Owing to their extremely high purity our seed testing papers provide reliable and reproducible results. The papers are made from pure cellulose without any additives and do not contain any substances that could influence the growth of the seeds. The constant water absorption of the papers ensures the continuous provision of the required amount of water.
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Gas cartridge filters, Super Clean™
Supplier: Thermo Fisher Scientific
These filters can be easily replaced without tools.