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.
Quantitative filter papers, ashless grades, grade 44, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.
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Pure quartz air sampling filters, grade QM-H, Whatman™
Supplier: Whatman products (Cytiva)
Whatman™ QM-H is a pure quartz fibre filter for use in testing acidic gases, stacks, flues and aerosols. It has low heavy metal content so it is well suited for heavy metals analysis.
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J.T.Baker® BAKERBOND Speedisk®, Extraction Discs
Supplier: Avantor
Discs are pre-assembled for use in preparing aqueous samples for analysis. Laminar configuration provides filtration capacity and inlet characteristics that maximise access of analyte molecules to the micro-particulate sorbent. Disc design resists clogging and ensures high throughput rates even when samples contain solids.
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Cartridge filters, Impact® 2 V2
Supplier: ENTEGRIS
Superior retention performance for ultra-clean, point-of-use filtration of photoresist and photochemical solvents.
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Grade 0905 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A creped paper for coarse particles, offers a very high filtration speed.
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Sterivex™ Membrane Filter Units, with Durapore® (PVDF) Membrane
Supplier: Merck
The Sterivex™ filter unit has a compact design ideal for large volume filtration using positive pressure.
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Syringe filters, Acrodisc® Versapor® for aqueous samples
Supplier: Cytiva (Formerly Pall Lab)
Useful for prefiltration of particulate laden aqueous samples, serum filtration and dissolution testing.
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Application specific filter papers, grade 512 ½, Whatman™
Supplier: Whatman products (Cytiva)
Low phosphate cellulose papers approximately 1,5 ppm phosphate, for the filtration of calcium lactate extracts from soil samples for the determination of K and P according to Egnér, Riehm and Lederle.
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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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Glass microfibre filters without binder, grade GF/A, Whatman™
Supplier: Whatman products (Cytiva)
These borosilicate glass filters are suitable for water quality parameter measurement and air filtration applications. They can be used for high efficiency, general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, foodstuff analyses, protein filtration, and radioimmunoassay of weak β emitters.
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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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Glass fiber filters without binder resin
Supplier: Merck
The filters without binder resin retain their structural integrity without weight loss when heated up to 500 °C and can therefore be used in gravimetric analysis as well as for the filtration of hot gases.
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Glass microfibre filters without binder, grade GF/B, Whatman™
Supplier: Whatman products (Cytiva)
These borosilicate glass filters are particularly useful for liquid clarification and liquid scintillation counting.
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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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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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Disposable spin columns for protein purification
Supplier: G-Biosciences
These disposable spin columns are designed for protein purification. These spin columns are uniquely designed, with a snap off end converting to a closure for the column for easy manipulation and use.
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Hazardous Waste Filtration System
Supplier: Merck
If your waste samples contain non-volatile or semi-volatile substances or metals, use this hazardous waste filtration system for saparation, extratction, and filtration. Developed in collaboration with the US Environmental Protection Agency (EPA), the system is designed specifically for the US EPA Extraction Procedure (EP) Toxicity Test and Toxicity Characteristic Leaching Procedure (TCLP). The device separates solid and liquid phases of waste samples for analysis.
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Centrifugal devices for RNA and DNA extraction, NAB Nanosep®
Supplier: Cytiva (Formerly Pall Lab)
The Pall Nanosep device for nucleic acid binding (NAB) incorporates a dual layer silica-based quartz glass fiber media to allow for efficient binding of DNA and RNA, while providing smooth flow and rapid processing of samples.
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Syringe filters, Acrodisc® ion chromatography (IC)
Supplier: Cytiva (Formerly Pall Lab)
Optimised to provide the most consistent results when analysing ionic species. Certified for low level extractables detected by conductivity.
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Membrane disc filters, Metricel® Black PES
Supplier: Cytiva (Formerly Pall Lab)
Contrasting hydrophilic modified black PES membrane for microbiological analysis.
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Grade 520 a filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).
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Filtering apparatus, DURAN®
Supplier: DWK Life Sciences
Filtration apparatus with unit made from clear DURAN® borosilicate glass 3.3, PTFE insert and anodised aluminium clamp.
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Syringe filters optimised for scale up, Acrodisc®
Supplier: Cytiva (Formerly Pall Lab)
Simplifies scale up and minimises revalidation; no need to change membrane materials during transition to pilot or production. PP housing; four membrane chemistries assure compatibility with a wide range of fluids.
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Membrane disc filters, GN-6 Metricel® MCE
Supplier: Cytiva (Formerly Pall Lab)
Certified hydrophilic mixed cellulose esters membrane for microbiological analysis meets or surpasses regulatory specifications.
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Replacement filters for spectrophotometric colorimeters, Lovibond® Model F
Supplier: Lovibond Tintometer
Lovibond®, Filter set red, yellow, neutral, with 10 filters
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Filter candles
Supplier: Lenz Laborglas GmbH & CO.KG
These cylindrical filter plugs without tube are made of borosilicate glass 3,3.
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Depth filter capsules, Supracap™ 50
Supplier: Cytiva (Formerly Pall Lab)
Scalable capsules with PP housing and vent and Seitz® high performance depth filter media. Supracap™ 50 capsules are designed for developing and optimising a process during scale-up and scale-down studies. They can be used to quickly and accurately determine which series and grade of depth filter media will provide the best performance as well as the necessary filtration area required to meet process volume.
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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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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).