Whatman™ Puradisc™ non-sterile glass microfiber syringe filters

Whatman™ Puradisc™ non-sterile syringe filters with glass microfiber membrane combine premium quality with economic efficiency.

• Eight different material options
• Choice of 4 mm, 13 mm, and 30 mm syringe filter diameter to suit sample volume
• Range of pore sizes for retaining a variety of particles
• Optional sterile, medical-grade blister pack
• Optional tube-tip format for accurate dispensing into a micro-vial

ISCC+ certified Biobased polypropylene housing (25mm devices):

• 90% Biobased plastic resin.
• Biobased plastic resin is ISCC Plus certified using Mass Balance approach.
• The polypropylene accounts for 95% of the weight/composition of the syringe filters.

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Whatman™ Puradisc™ syringe filters cater to a wide variety of sample types and applications, including capillary electrophoresis, biological preparations, protein filtration, and UV spectroscopy sample preparation. Different Puradisc membrane media support diverse chemical solvents and compounds.

Glass microfiber (GMF) membranes

Glass microfiber is hydrophilic and has excellent compatibility with organic solvents and strong acids (except hydrofluoric acid) and bases. However, it is not a micropore membrane and so has a slightly less exact retention efficiency than polymeric membranes. GMF can also contribute extractables that interfere with ionic and metals analysis.

Whatman Puradisc is available in the following membrane materials: regenerated cellulose (RC), cellulose nitrate, nylon, polytetrafluoroethylene (PTFE), polyethersulfone (PES), polyvinylidene difluoride (PVDF), and cellulose acetate.

Documents

• Instructions for use (PDF)