Pura Disc 13mm PES Syringe Filters, 0.45um, 50 Pk
Whatman SKU: 6780-1304

Whatman Puradisc Polyethersulfone (PES) Syringe Filters, 0.45 µm, 13 mm, 50/Pk - 6780-1304

Whatman standardizes its manufacturing platform to the point that consistency and thorough lot-level records come as a default, exactly what analytical laboratory work demands. A syringe filter's small hold-up volume limits sample loss, a meaningful difference when working with a limited or precious sample. PES holds consistent absolute retention at the rated pore size while staying stable across the pH 1 to 14 range and keeps that modified surface active throughout use. The PP housing stays inert across common laboratory solvents and buffers in routine use and holds its seal true run after run. When chromatographic methods demand particle-free injections, the column stays clean from run to run, protecting method performance and column life.

Technical Specifications

• Sulfone backbone's hydrolytic stability tolerates repeated autoclave steam sterilization cycles
• Mechanical strength keeps the matrix intact under vacuum or pressure
• Non-hydrogen-bonding surface avoids the polar adsorption nylon's amide backbone causes
• Non-ionic surface avoids charge-driven protein binding of positively and negatively charged membrane types
• Inherent hydrophilicity allows instant aqueous wetting with no pre-wetting step

Housing Specifications

• Polypropylene housing withstands operating temperatures up to 121°C without softening or dimensional distortion.
• Stable across the full aqueous pH range in routine sample work
• Optimized internal geometry minimizes backpressure in service
• The seal formed against the membrane blocks bypass at rated operating pressure

A clean particulate separation keeps your aqueous sample preparation dependable. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. Ask about a quality certificate, lot documentation, or a blanket-order quote for your filtration order at any time.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

2.3 bar (33 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophilic

• Serum Filtration - Clarifies serum and plasma samples quickly while retaining critical proteins needed for accurate downstream analytical testing.
• Biological Assays - Protects sensitive enzymatic and antibody-based assays from particulate interference without adsorbing critical reagents.
• Sample Recovery - Minimizes sample loss in low-protein-binding applications, delivering high yield for precious or rare biological specimens.
• Life Science Prep - Speeds processing of viscous biological solutions, improving laboratory workflow efficiency during busy sample prep days.
• Pesticide Residue Testing - PES membranes improve polar pesticide recovery in food-safety LC-MS/MS testing versus hydrogen-bonding nylon.
• Urine Drug Screening - Clarifies protein-poor urine samples for dilute-and-shoot LC-MS/MS toxicology testing without adsorbing target drug analytes.