PALL 4225 Acrodisc Syringe Filters with PTFE Membrane - 0.2 µm, 25mm, 200/pk

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PALLSKU: 4225

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Sale price$832.91 Regular price$985.00

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Description

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.
PTFE membrane is highly chemically compatible for the filtration of harsh solvents that can destroy other membrane materials. PTFE is a hydrophobic membrane, so it will repel water and is not suitable for the filtration of aqueous solutions.
As well as being suitable for the filtration of organic solvents in applications such as HPLC and UHPLC sample preparation, the hydrophobic nature of the PTFE membrane makes these syringe filters ideal to use in gas filtration or as a moisture barrier in venting applications.
25 mm Standard Acrodisc Syringe Filters

Click here for PALL 4612 Acrodisc Syringe Filters with Supor® Membrane, Sterile - 0.2

Specifications

brand PALL
diameter-mm 25
effective-filtration-area 2.8 cm²
list-price 985.00
manufacturer-part-number 4225
material polypropylene
operating-temperature 100 °C
part-number 4225
pore-size-μm 0.2
quantity-per-pack 50

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Net 30 Terms

We offer Net 30 terms for qualified business customers, allowing you to receive your order now and pay within 30 days of the invoice date.

Frequently Asked Questions

These syringe filters are ideal for HPLC and UHPLC sample preparation, organic solvent filtration, and gas filtration. They help remove particulates before analysis, protecting sensitive instruments and improving data accuracy.

The PTFE membrane is highly chemically resistant and hydrophobic, making it suitable for aggressive solvents, acids, and non-aqueous solutions. It prevents degradation that can occur with other membrane types.

Standard PTFE membranes are hydrophobic and repel water, so they are not ideal for aqueous solutions unless pre-wetted with alcohol. They are primarily recommended for organic solvents and gas applications.

A 0.2 µm pore size offers fine particulate removal and is commonly used for sterile filtration or UHPLC sample prep, helping prevent clogging of columns and improving analytical consistency.

This model features a 25 mm diameter, ~2.8–3.9 cm² filtration area, polypropylene housing, and a maximum operating temperature of around 100°C. It is supplied in packs of 50 (200 per case) for high-throughput laboratory use.

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