GD/X 13mm Syringe Filter, PTFE Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6874-1304

Whatman GD/X PTFE Syringe Filters, 0.45 µm, 13 mm, 150/Pk - 6874-1304

Whatman ties GD/X prefiltration performance to one closely held fiber-grade standard applied at every production run, keeping results repeatable from one manufacturing lot to the next. A syringe filter dispenses filtrate directly into an autosampler vial, without the intermediate collection vessel a bulk vacuum filtration setup typically needs. PTFE delivers absolute particle cutoff at the rated pore size and repels water while passing gases and solvents freely. Thermal-bonded PP construction leaves no seam for sample to bypass the membrane and resists degradation from routine sample matrices. Where bench-scale prep must move quickly from one sample to the next, each sample starts as clean as the last without a carry-over risk or a cleaning step between uses.

Membrane Characteristics

• Chemical resistance spans the full pH 1 to 14 range
• Non-fibrous, fully synthetic structure sheds no fibers into filtrate
• UL 94 V-0 rating confirms the highest self-extinguishing classification
• Minimal moisture absorption pairs with a low tare mass
• Insolubility in all known organic solvents avoids swelling and pore distortion

Housing Characteristics

• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.
• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Plasticizer-free polyolefin construction keeps the fluid path clean
• The seal formed against the membrane blocks bypass at rated operating pressure

Filtering aggressive solvents and reagents through a filter that holds up to the chemistry keeps your sample prep reliable. Solvent-stream filtration handles the solvents and reagents your methods rely on so your filter holds its integrity through the run. Start a live chat with our customer support technicians for real-time updates on product availability, lead time, or your order status.

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

Bubble Point (psi)

0.6 bar (9 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

0.5ml

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

150

Pore Size (µm)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Dye and Pigment Analysis - Clarifies dye solutions in DMF, NMP, and other aggressive organics ahead of spectrophotometric color strength testing.
• Mobile Phase Prep - Extends column life by consistently removing particulates from organic HPLC mobile phases before every injection.
• Toxicology Screening - Clarifies protein-precipitated serum, plasma, and urine extracts ahead of LC-MS or GC-MS drug screening analysis.
• Air Monitoring - Ensures precise capture of airborne particulates for environmental analysis in demanding atmospheric monitoring conditions.
• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Fuel Analysis Prep - Clarifies gasoline and other petroleum samples ahead of gas chromatography, protecting injector ports from residue buildup.