This website is still in development. If any bugs or errors are found, please use the contact form to report them.
Product Menu

PTFE-D (Polytetrafluoroethylene)

Johnson Test Papers’ PTFE Syringe Filters are purpose built with features designed to bring the highest levels of performance and purity to your research. We incorporate a variety of membranes to offer separation and purification solutions for the majority of the laboratory needs. This hydrophobic filter is used for quick, simple and reliable ultra-cleaning of small volumes and very suitable for air and gas particulate filtration.. PTFE is chemically stable and inert. It has excellent compatibility with aggressive solvents and acids. It exhibits low protein binding and is recommended for the filtration of non-aqueous samples e.g. HPLC solvent preparation and degassing to ensure column protection. Prior to filtering of aqueous samples, the membrane must be pre-wetted with a water-miscible organic solvent such as ethanol . They can also be autoclaved

Key Features
  • Broad chemical compatibility
  • For non polar liquids and gases
  • Strong chemical and thermal stability
  • Resistant against most organic solvents and aggressive acids and bases
  • Strong hydrophobicity
  • Designed with a female Luer lock and male Luer slip outlets
  • Also available as individually wrapped sterile filters, certified RNase-free, DNase-free and DNA-free - non phytogenic
Applications
  • Organic solvents and corrosive chemical filtration
  • Strong acidic solvent filtration
  • Alkali solvent filtration
  • Preparation of HPLC or GC samples
  • Filtration of air and gases
Specification 13mm
Material Membrane: PTFE
Housing Material: PP
Filter diameter(mm): 13mm
Filtration area (cm): 1.09
Holdup volume (μL) <20
Sample volume (mL): <10
Maximum Operating Temperature: 130°C
Maximum Operating Pressure (psi): 87°C
Applicable pH value: 1-14
Specification 25mm
Material Membrane: PTFE
Housing Material: PP
Filter diameter(mm): 25mm
Filtration area (cm): 4.08
Holdup volume (μL) <100
Sample volume (mL): <100
Maximum Operating Temperature: 130°C
Maximum Operating Pressure (psi): 87°C
Applicable pH value: 1-14
Sizes & Product codes
Dimension Sterilisation Pack Size Pore Size Product Code
13mm Without 100 0.20μM SFD13P020N
0.45μM SFD13P045N
25mm Without 50 / 100 0.20μM SFD25P020N
0.45μM SFD13P045N
Combi Syringe Filters
Diameter Sterilisation Pack Size Pore Size Product Code
13mm Without 50 0.2μM SFD25P020G
Without 50 0.45μM SFD25P045G
25mm Without 100 0.2μM SFD25P020G
Without 100 0.45μM SFD25P045G