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CHROMTECH :  Specialists in Chromatography
- Fluid Transfer Products : & FOR !All Your Laboratory Needs
- Importers & Distributors in AUSTRALIA

Membrane Filters
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Membrane Disc Filters
more details > ASK !

 Nylon, PTFE, PVDF, PP, CA, PES, MCE,
25, 47mm Diameter
0.22, 0.45 micron
- Glass Fibre, use as pre filters for faster flow higher sample capacity

SPEED ? : Depends on Viscosity of matrix) hence temperature . . .
. . .  ( 20deg can speed up x2 55deg C max recommended if PP in the system eg Syringe Filters
, polarity matching of membrane material and matrix
Proportional to Disc Surface Are 90mm(x13) >> 47 (x3.7times) > 25mm (x1) . . . everthing else being equal
Composite multi-later membranes are inherently faster ( intermediate layers may be temperature suspect eg PP)
eg compare Whatman PVDF GD/X Syringe Filter in 25mm

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