Filters

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.

Application specific filter papers, grade 0048, Whatman™

Supplier: Whatman products (Cytiva)

Filter mat made from a mixture of cellulose and polyester. This mat is used for optically testing baby food (artificial milk) for textile fibers.

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Qualitative filter papers, Grade 2555 ½, Whatman™

Supplier: Whatman products (Cytiva)

A medium fast filter paper used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer.

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Qualitative filter papers, wet strengthened grades, grade 1573 and 1573 ½, Whatman™

Supplier: Whatman products (Cytiva)

A fast filter paper with high wet strength. It has a very smooth surface making it easy to scrape or wash off precipitate.

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Pallflex® filters

Supplier: Cytiva (Formerly Pall Lab)

Versatile filters uniquely suited for a broad range of air monitoring applications.

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Centrifugal filters, Amicon Ultra-2 ml

Supplier: Merck

Ultra centrifugal filters provide fast sample processing and promote high sample recoveries, even in dilute samples, through ultrafiltration.

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Bottle top vacuum filtration units, Rapid-Flow™ Nalgene®

Supplier: Thermo Fisher Scientific

Rapid-Flow™ single use bottle tops with PES membrane and PS funnel. Filters screw onto glass media bottles with 33 or 45 mm neck size. They feature the exclusive Rapid-Flow support column design, providing fast flow rates and high throughput.

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Grade 2 qualitative filter papers, Whatman™

Supplier: Whatman products (Cytiva)

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

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Grade 4 qualitative filter papers, Whatman™

Supplier: Whatman products (Cytiva)

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

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Grade 2V qualitative filter papers, fluted, Whatman™

Supplier: Whatman products (Cytiva)

Compared with quadrant-folded filters, Cytiva's Whatman Grade 2V pre-folded filter paper exposes extra surface area, which enables a higher loading capacity and shorter filtration time.

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Bottle top vacuum filtration systems, nylon membrane, Rapid-Flow™ Nalgene®

Supplier: Thermo Fisher Scientific

Rapid-Flow™ disposable filter units feature the exclusive rapid-flow support column design, providing fast flow rates and high throughput.

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Syringe filters, Acrodisc® DMSO-safe

Supplier: Cytiva (Formerly Pall Lab)

For solutions containing dimethylsulfoxide (DMSO). Sterilisation of media used for cell cryopreservation.

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Acrodisc® units with Mustang® E membrane

Supplier: Cytiva (Formerly Pall Lab)

Remove endotoxin from water, buffer, neutral sugars and certain biological solutions. Also for plasmid preparation for transfection.

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TCLP glass fibre filters

Supplier: Cytiva (Formerly Pall Lab)

Low extractable, binder-free borosilicate glass fibre filters. Suitable for use of the EPA 1311 Toxicity Characteristics Leaching Procedure and for prefiltration of dirty HPLC samples.

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Milli-Q SQPAK™ TOC Quanta Cartridge

Supplier: Merck

The SQPAK™ TOC Quanta cartridge produces ultrapure (Type 1) water at 18,2 MΩ·cm resistivity and TOC ≤5 ppb. The cartridge contains IQnano™ ion-exchange media to remove ions down to trace levels and high-grade synthetic activated carbon that targets traces of organic contaminants.