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  • Filtration and extraction

  • PTFE-H (Polytetrafluoroethylene)

    Johnson Test Papers’ hydrophilic PTFE syringe filters use special hydrophilic PTFE membrane as the filter medium. This material has maximum chemical and pH resistance and is visually clear when wet with water. The PTFE-H syringe filter is a versatile filter for aqueous and aggressive organic solvent based solutions and especially ideal for HPLC operation. Pure, colour-coded polypropylene housing with a choice of smooth or geared rims are available.

    Key Features
    • Low protein binding, fine particle removal from aqueous and organic solutions
    • Accurate analysis - HPLC certified for low levels of UV absorbing extractables
    • High flow rates with minimal aqueous extractables
    • Low surface friction coefficient: 0.1
    • Wide range of working temperatures: 180 - 260 °C
    Applications
    • Highly recommended for filtering HPLC samples in the mobile phase
    • Filtration of caustic organic solvents
    Specification 13mm
    Material Membrane: PTFE
    Housing Material: PP
    Filter diameter(mm): N/A
    Filtration area (cm): 1.09
    Holdup volume (μL) <20
    Sample volume (mL): <10
    Maximum Operating Temperature: 130°C
    Maximum Operating Pressure (psi): 87psi
    Applicable pH value: N/A
    Sample Type >Aqueous >Organic
    Connections Inlet: FLL Outlet: MSL
    Flow Directions From FLL to to MSL
    Specification 25mm
    Material Membrane: PTFE
    Housing Material: PP
    Filter diameter(mm): N/A
    Filtration area (cm): 4.08
    Holdup volume (μL) <100
    Sample volume (mL): <100
    Maximum Operating Temperature: 130°C
    Maximum Operating Pressure (psi): 87psi
    Applicable pH value: N/A
    Sample Type >Aqueous >Organic
    Connections Inlet: FLL Outlet: MSL
    Flow Directions From FLL to to MSL
    Sizes & Product codes
    Dimension Sterilisation Pack Size Pore Size Product Code
    13mm Without 100 0.20μM SFH13P020N
    0.45μM SFH13P045N
    25mm Without 50 / 100 0.20μM SFH25P020N
    0.45μM SFH25P045N
    Combi Syringe Filters
    Diameter Sterilisation Pack Size Pore Size Product Code
    13mm Without 50 0.2μM SFH25P020G
    Without 50 0.45μM SFH25P045G
    25mm Without 100 0.2μM SFH25P020G
    Without 100 0.45μM SFH25P045G