Pura Disc 25mm Nylon Syringe Filters, 0.2um, 200 Pk
Whatman SKU: 6751-2502

Whatman Puradisc Nylon Syringe Filters, 0.2 µm, 25 mm, 200/Pk - 6751-2502

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. Sterilizing-grade syringe filters deliver sterile-grade retention as a single-use format, eliminating the autoclaving and cleaning cycle a reusable sterile filtration setup would require. Nylon arrives in economical bulk packaging for high-volume routine filtration and accepts water-based samples without surfactant conditioning. The polypropylene housing holds its seal true run after run while staying inert across common laboratory solvents and maintains a low-dead-volume internal flow path. For workflows requiring validated sterile-grade performance, point-of-use retention meets it without a separate sterilization step.

Technical Specifications

• Nylon resists common ketone solvents, including acetone, methyl ethyl ketone, and methyl isobutyl ketone, broadening compatible sample-prep chemistries
• Nylon membrane withstands autoclaving at 121°C for 30 minutes without pore structure loss
• Nylon clarifies QuEChERS acetonitrile extracts ahead of LC-MS/MS pesticide residue analysis in food and agricultural testing
• Nylon's hydrophilic surface takes up aqueous samples with no pre-wetting required
• Nylon 6,6 resin absorbs up to 8% moisture by weight at saturation

Housing Specifications

• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening.
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.
• Gamma-stabilized polypropylene formulations tolerate terminal irradiation sterilization without embrittlement or discoloration

Filtering every buffer before loading keeps your instrument running clean and uninterrupted. Upstream buffer clarification keeps avoidable particulates out of your flow path before they reach the column inlet or detector. Request blanket-order pricing on your routine filtration purchases, and the Tisch Scientific team will also pull together the paperwork.

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

Bubble Point (psi)

2.9 bar (42 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Nylon

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

200

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Veterinary Drug Residue Testing - Clarifies meat, milk, and egg extracts ahead of LC-MS/MS screening for drug residues in food-safety laboratories.
• Capillary Electrophoresis Prep - Delivers low background noise in small-format CE filtration for high-resolution separations and accurate data.
• Dissolution Testing - Supports accurate drug release profiles by clarifying dissolution samples ahead of HPLC quantitation in QC labs.
• Water Quality Monitoring - Removes suspended solids from environmental water samples for routine total suspended solids testing.
• QuEChERS Cleanup - Clarifies acetonitrile food extracts after dispersive cleanup, protecting GC-MS and LC-MS systems during pesticide screening.
• Environmental Extract Prep - Clarifies water and soil extracts ahead of trace metals or pesticide-residue analysis for accurate results.