SKU: 23817006224

PALL 4914 Acrodisc Syringe Filter with wwPTFE Membrane - 0.45 µm, 25 mm (200/pkg)

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Description

PALL 4914 Acrodisc Syringe Filter with wwPTFE Membrane - 0.45 µm, 25 mm (200/pkg)Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build up and reduce system downtime. Sample filtration using syringe filters containing 0. 45 m (HPLC) or 0. 2 m (UHPLC) pore size membranes will also extend the life of chromatography columns

Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build-up and reduce system downtime. Sample filtration using syringe filters containing 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membranes will also extend the life of chromatography columns by preventing particulate from blocking the flow path between the column packing. Pall’s Acrodisc Syringe Filters with wwPTFE membranes have been designed to protect analytical instrumentation and improve the reliability of results. wwPTFE membrane devices are chemically compatible with a wide variety of common solvents and are suitable for use in both aqueous and organic applications. These syringe filters are constructed with solvent compatible polypropylene material. The polypropylene plastic provides the syringe filter with exceptional strength, it is the highest grade of plastic with minimal additives and passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88> plastics testing. Both the wwPTFE membrane and polypropylene housing are extremely low in levels of potential extractables that can lead to chromatographic interference. The devices are low in protein and API binding which make them ideal for drug studies, such as dissolution testing. Pall provides HPLC certification with these products, ensuring that analytical results will not be compromised by extractable filter materials. Pall membranes are tested for compatibility with common HPLC solvents including water, methanol, and acetonitrile, using established HPLC procedures. In addition, to verify low levels of UV-detectable extractables, samples of the syringe filters are evaluated prior to release. Standard 25 mm Acrodisc syringe filters are designed for the filtration of sample volumes up to 100 mL. They feature an effective filtration area of 2.8 cm2.
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SKU: 23817006224

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Bookdiver2
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best lip sunscreen I have ever used. Currently in/on Curaçao and no burn! Was out all day yesterday in the sun and this stick was only reapplied 3 times between 8am and 4pm. Reef safe too, that is important to me!
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Reviewed in the United States on April 15, 2026
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KATHE
Fort Morgan, US
★★★★★ 5
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Size: Pack of 1
Love it! Not greasy, rubs in well, & doesn't smell. Doesn't leave the typical white sheen if you blend in well. Great to add foundation over. Ingredients are less chemicaly than other products.
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Reviewed in the United States on March 15, 2026
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Rick Schipper
Boise, US
★★★★★ 5
Good stuff
Size: Pack of 1
Very nice to use
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Reviewed in the United States on May 28, 2026
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bunnyholmes
Birmingham, US
★★★★★ 5
Good protection, water resistant
Size: Pack of 1
I love their products. This is no exception. Used it recently in the Caribbean and Florida. Did a great job of protecting my lips and also seemed to have some resistance to washing off when I was swimming or snorkeling.
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Reviewed in the United States on March 5, 2026
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Brad
Belleville, US
★★★★★ 5
This lip balm has worked well for me overall
Size: Pack of 1
This lip balm has worked well for me overall. It does what I want from an SPF lip balm and I have not had any major complaints using it. The only minor downside is that it is a little soft, so when you first start using a tube you may notice a few small chunks on your lips. That has not been a big enough issue to bother me much, but it is worth mentioning. Aside from that, it has been a good product and I would keep using it.
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Reviewed in the United States on March 10, 2026

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