Pura Disc 13mm PES Syringe Filters, 0.45um, 100/Pk
Whatman SKU: 6782-1304

Whatman Puradisc Polyethersulfone (PES) Syringe Filters, 0.45 µm, 13 mm, 100/Pk - 6782-1304

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. Many syringe filters ship with lot-specific quality documentation, giving analysts traceability that an ad hoc bulk filtration setup typically lacks. PES admits aqueous reagents on contact, skipping any surfactant rinse while tolerating aliphatic alcohols, glycols, and aqueous buffers and pairs fast flow with reduced protein adsorption. The polypropylene housing keeps the sample chemically unaltered across the pass and maintains a low-dead-volume internal flow path. For routine sample preparation across many methods, each analytical run starts with a consistent, particle-free sample without added hardware or a cleaning step.

Technical Specifications

• Antibody and protein samples pass through PES with minimal adsorptive loss
• Absolute pore size rating holds consistent across every lot
• PFAS extractables test non-detectable under EPA Method 537.1
• DNA and RNA pass through with negligible adsorptive loss
• Chemical breadth spans alcohols, glycols, and aqueous buffers

Housing Specifications

• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening.
• Thermal-bonded construction keeps adhesives out of the fluid path
• Resists stress cracking from aqueous salt and buffer solutions
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day so you can standardize one filter across most aqueous methods. 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

100

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophilic

• 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.
• Biological Assays - Protects sensitive enzymatic and antibody-based assays from particulate interference without adsorbing critical reagents.
• Urine Drug Screening - Clarifies protein-poor urine samples for dilute-and-shoot LC-MS/MS toxicology testing without adsorbing target drug analytes.
• Pesticide Residue Testing - PES membranes improve polar pesticide recovery in food-safety LC-MS/MS testing versus hydrogen-bonding nylon.
• Biological Fluids - Filters buffers and biological fluids efficiently, using the PES membrane to maximize flow and minimize non-specific binding.