WHA67790404
Whatman® Puradisc 4 syringe filters
Puradisc 4 syringe filter, 0.45 μm, PVDF, 100/pk
Synonym(s):
Whatman filter, Whatman filters, Z672769, disposable syringe filters
About This Item
Recommended Products
material
PVDF membrane
polypropylene housing
sterility
non-sterile
packaging
pack of 100
manufacturer/tradename
Whatman 6779-0404
Whatman Article No. 28420277 (US reference)
diam.
4 mm
filtration area
0.2 cm2
volume
≤2 mL
pore size
0.45 μm
fitting
female Luer inlet (lock)
male Luer outlet
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General description
Puradisc syringe filters combine premium quality and economy. They are ideal for the quick, efficient filtration of samples up to 100 mL volume.
Puradisc filters are produced from pigment-free polypropylene or polycarbonate with standard inlet (female luer lock) and outlet (male luer) connections (unless otherwise stated). Options include a sterile, medical-grade blister pack for critical applications and a special tube tip outlet that allows the sample to be accurately dispensed into a micro-vial, eliminating air lock.
Features and benefits:
- Pigment-free polypropylene (polycarbonate for Puradisc 30 and Aqua 30
- Standard inlet and outlet luer connector
- Optional sterile, medical-grade blister pack
- Tube-tip format (optional) for accurate dispensing into a micro-vial
- Choice of membrane or glass microfiber filter media
- Choice of filter sizes (4 mm, 13 mm or 30 mm) to minimize sample loss
- Sterile option for critical applications
- Wide range of membranes
Application
- 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)
Features and Benefits
- 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)
Suitability
- HPLC samples containing low solid content
- capillary electrophoresis samples
- UV/VIS samples - filter directly into cuvette using tube tip
Other Notes
Legal Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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