Status:
Expert ReviewerMember since: 2012
Organization: UNESP/IBILCE
Application Area: Filtering solution
"WHATMAN 0.45 µm PES devised by GE Healthcare Life Sciences are good for filtering buffers and other solutions for chromatography. It removes maximum particulate matters from the solution. I recommend it to use for filtering solutions. "
Whatman Puradisc 4 Syringe Filters
GE healthcare's Puradisc 4 Features:
• 4 mm diameter syringe filter
• Sample volume up to 2 ml
• Low hold-up volume < 10 µl ensures maximum sample recovery
• Tube-tip format (optional)
• Applications
• HPLC samples containing low solid content – filtration will improve column life
• CE (Capillary Electrophoresis) samples – filtration will eliminate spurious peaks
• Sterile filtration of low volume samples
• UV/Vis samples – filter directly into cuvette using tube tip
• Refractometry – filter samples to prevent damage to instrument optics and improve accuracy of results
• Minimizing non-specific binding to membrane (due to small membrane size)
Whatman Puradisc 13 Syringe Filters
GE healthcare's Puradisc 13 Features:
• 13 mm diameter syringe filter
• Sample volume up to 10 ml
• Low hold-up volume < 25 µl ensures maximum sample recovery
• Glass microfiber option available
• Tube-tip format (optional)
Applications:
• Biological sample preparation
• HPLC sample preparation
Whatman Puradisc 25 Syringe Filters
GE healthcare's Puradisc 25 Features:
• 25 mm diameter syringe filter
• Sample volume up to 100 ml
• Low hold-up volumes for maximum sample recovery
• Glass microfiber option available
Applications:
• HPLC aqueous sample preparation
• Biological sample preparation
• Buffer solutions
• Salt solutions
• Tissue culture media
• Irrigation solutions
• Sterile isolation
Whatman Puradisc 30 Syringe Filter
GE healthcare's Puradisc 30 Features:
• 30 mm diameter
• Larger filtration area (44% greater in comparison with 25 mm)
• Designed for aqueous samples
Applications:
• Filtration of protein-containing solutions with minimal protein loss (CA membrane)embrane)
• Removal of cellular constituents from solution
GE healthcares's Whatman Puradisc Aqua 30
The Whatman Puradisc Aqua 30 is specifically designed for filtration of environmental samples prior to COD and DOC analysis. The membranes used in these devices are prewashed prior to assembly so as to reduce the organic carbon level.