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Z134260 Aldrich

Whatman® PTFE membrane filters

PTFE membrane circles, (TE 36), 0.45μm, 47 mm, 50/pk

Synonym: Whatman filter, Whatman filters, ptfe filter

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Properties

Related Categories Filtration Supplies, Labware, Manufacturer Browser, Membrane Filters, PTFE Membrane Filters,
packaging   pack of 50
mfr. no.   Whatman Article No., 28415315 (US reference)
  Whatman, 10411311
diam.   47.0 mm
pore size   ≤0.45 μm pore size
suitability   suitable for (applications involving aggressive organic solvents, strong acids, and alkalis)

Description

Application

Applications:
One of the major applications for the PTFE membrane is the clarification of corrosives, solvents, and aggressive fluids. This includes the important requirement in HPLC analysis for sample filtration where any solid particles can cause permanent damage to the column. The 0.5 μm pore size is normally used. Air and gas filtration use the hydrophobic characteristics of PTFE membranes and their ability to stop aqueous aerosols. Usual pore sizes are 0.2 μm and 0.5 μm. Venting of vacuum manifolds, fermentation vessels, and sterile filtrate tanks and containers utilize PTFE 0.2 μm membranes.

Other Notes

Global SIAL customers (excluding Japan) can now order any product from the GE Healthcare Life Sciences consumables portfolio (prepack only) using GE′s product numbering system.

The legacy GE Whatman products that use the SIAL "Z" product numbering system will be discontinued and directly replaced with a product number using a "WHA" prefix plus the GE product code. For reference, the legacy "Z" product number is identified as a synonym on the "WHA" product number listing.

This product has been replaced by WHA10411311-ALDRICH | Whatman PTFE membrane filters, PTFE membrane circles, (TE 36), 0.45μm, 47 mm, 50/pk

General description

Whatman® PTFE Membranes

Whatman PTFE membranes are chemically stable and inert. They are suitable for applications involving aggressive organic solvents, strong acids, and alkalis. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications for air and gas sterilization. The membrane is laminated onto a nonwoven polypropylene support web for improved strength and handling and can be used at temperatures up to 120ºC.

Chemically stable and inert:
PTFE is the membrane of choice for use with aggressive solvents, liquids, and gases that can attack other membranes. It is resistant to most acids, alkalis, and solvents.

Applications:
One of the major applications for the PTFE membrane is the clarification of corrosives, solvents, and aggressive fluids. This includes the important requirement in HPLC analysis for sample filtration where any solid particles can cause permanent damage to the column. The 0.5 μm pore size is normally used. Air and gas sterilization make use of the hydrophobic characteristics of PTFE membranes and their ability to stop aqueous aerosols. Usual pore sizes are 0.2 μm and 0.5 μm. Sterile venting of vacuum manifolds, fermentation vessels, and sterile filtrate tanks and containers utilize PTFE 0.2 μm membranes.

WTP and TE membrane ranges:
WTP membranes use a polypropylene grid as the support material whereas the TE range use a randomly arranged polypropylene support material.

Legal Information

Whatman is a registered trademark of GE Healthcare

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Certificate of Analysis

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WHA10411311 Whatman® PTFE membrane filters, PTFE membrane circles, (TE 36), 0.45μm, 47 mm, 50/pk

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