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Ahlstrom

  • Cellulose Nitrate Membrane Filters, Type WCN

    GE Healthcare

    Produced from high-purity nitrocellulose Resistant to mild acids, hydrocarbons, formaldehyde, aniline, isopropyl and petroleum ethers, oils, gasoline and kerosene Attacked by strong acids, bases, ethyl amines, ketones and esters Smooth-surfaced and flexible 0.2 µm pore size…

  • Filters Membrane Circles, Cellulose Nitrate, White Gridded, 0.45µm, 47mm

    GE Healthcare

    Mixed cellulose ester membrane, WME range, circle, white/black grid, 3.1 mm, 0.45 µm, 47 mm The membrane offers a high degree of internal surface area for greater adsorption of product. Higher dirt loading capacity. Black plain and black gridded membranes have a mix of cellulose…

  • Nylon Membranes

    GE Healthcare

    High-quality nylon membranes are suitable for filtering aqueous solutions and most organic solvents. The membranes are suitable for use with a wide range of biological preparations and can be used where other membranes are unsuitable or difficult to use. Nylon membranes are hydrophilic,…

  • Nuclepore Track-Etched Polycarbonate (Hydrophilic) Membranes

    GE Healthcare

    Nuclepore track-etched polycarbonate membranes are manufactured from high-quality polycarbonate film and have sharply defined pore sizes, high flow rates, and excellent chemical and thermal resistance. The membranes have a smooth flat surface and exhibit very low levels of extractables. …

  • Membrane Circles, Cellulose Nitrate, White Plain, 0.45mm 90mm

    GE Healthcare

    Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the performance improvements that are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of…

  • Membrane Circles, Cellulose Nitrate, White Plain, 0.8mm 90mm

    GE Healthcare

    Cellulose nitrate membranes, circles, plain. Narrow pore size distribution for improved surface capture and analysis. Low levels of extractables to ensure sample integrity. Recommended for the majority of routine applications, this membrane is manufactured under strictly…

  • Membrane Circles, Cellulose Nitrate, White Plain, 5µm 47mm

    GE Healthcare

    Narrow pore size distribution for improved surface capture and analysis. Low levels of extractables to ensure sample integrity. Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the…

  • Anopore Inorganic Membranes

    GE Healthcare

    Anopore inorganic membranes are composed of aluminum oxide and exhibit a highly controlled, uniform capillary pore structure and a high pore density. These filters are suitable for use in a wide range of specialized applications, including HPLC mobile phase filtration and degassing, bacterial…

  • Membrane Holder, Stainless Steel Syringe Filter Type, 13mm

    GE Healthcare

    The holders are designed for the quick and easy clarification, sterilization, and removal of particulates from small volume samples, typically for HPLC applications. Stainless steel and polypropylene with luer fittings for use with a standard syringe Holders contain PTFE gaskets and…

  • Cyclopore™ PC Polycarbonate Membranes

    GE Healthcare

    Membrane filters for asbestos sampling and analysis Controlled pore size distribution Smooth flat membrane: particles are retained on surface and easily visible during optical analysis Nuclepore membranes available in two versions: gold coated or uncoated Asbestos analysis is…

  • Black Polycarbonate Membrane Filters

    GE Healthcare

    Greatly reduce background fluorescence in epifluorescence microscopy applications Also useful in particle counting as most particles are compressed against the dark background Pore size 0.2 µm

  • Membrane Circles, Cellulose Nitrate, White Plain, 0.2µm 47mm

    GE Healthcare

    Low levels of extractables to ensure sample integrity Narrow pore size distribution for improved surface capture and analysis Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the…

  • PTFE Membrane Circles TE Range

    GE Healthcare

    Whatman PTFE membranes are chemically stable and inert. They are suitable for applications involving aggressive organic solvents, strong acids, and alkalis. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications…

  • PTFE Membrane Circles TE Range

    GE Healthcare

    Whatman PTFE membranes are chemically stable and inert. They are suitable for applications involving aggressive organic solvents, strong acids, and alkalis. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications…

  • Membrane Marking Pen PK10

    GE Healthcare

    For marking nitrocellulose and nylon transfers. The membrane marking pen is a high-xylene, felt-tipped marker that permanently writes on nitrocellulose and nylon membranes used in standard transfer procedures. Ensures easy identification and orientation of gel transfers, colony and…

  • Cellulose Acetate Membranes, ST 69

    GE Healthcare

    Whatman cellulose acetate membranes made from pure cellulose acetate making them suitable for biological and clinical analysis, sterility tests, and scintillation measurements. Cellulose acetate membrane filters exhibit very low protein binding capacity. They are hydrophilic making them…

  • AE99/5 8uM 50MM 100/PK HYRIM

    GE Healthcare

    Cellulose nitrate membranes, circles, plain Narrow pore size distribution for improved surface capture and analysis. Low levels of extractables to ensure sample integrity. Recommended for the majority of routine applications, this membrane is manufactured under strictly…

  • Membrane Circles, Cellulose Nitrate, White Plain, 0.1µm 47mm

    GE Healthcare

    Cellulose nitrate membranes, circles, plain. Low levels of extractables to ensure sample integrity. Narrow pore size distribution for improved surface capture and analysis Recommended for the majority of routine applications, this membrane is manufactured under strictly…

  • Mixed Cellulose Ester Membranes

    GE Healthcare

    Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filter surface facilitates particle detection and…

  • Protran BA85 Membranes

    GE Healthcare

  • RC55 0.45uM 25MM 100/PK

    GE Healthcare

    Regenerated cellulose membranes, circles. Spontaneously wetting, very good wet strength Sterilizable by all methods Pore sizes between 0.2 µm and 1 µm Extremely chemically resistant; suitable for aqueous and organic media Mechanically stable Whatman…

  • Mixed Cellulose Ester Membranes, 0.45µm

    GE Healthcare

    The membrane offers a high degree of internal surface area for greater adsorption of product. Higher dirt loading capacity. Black plain and black gridded membranes have a mix of cellulose nitrate and cellulose acetate. Uniform microporous structure of membrane gives high flow rates. No…

  • PM2.5 Air Monitoring Membrane

    GE Healthcare

    A high-purity, thin PTFE membrane in a sequentially numbered chemically resistant polypropylene support ring for PM 2.5 ambient air monitoring. Whatman PM 2.5 membranes have low tare mass for accurate gravimetric determinations. The thermally stable design eliminates curling, keeps the membrane…

  • Membrane Circles, PTFE, White Plain, 0.5µm 47mm

    GE Healthcare

    Grade WTP PTFE Membrane Filter Chemically stable and inert to handle most aggressive solvents, acids and alkalis Normally used in HPLC analysis for sample filtration where any solid particles can cause permanent damage to the column Hydrophobic nature of the membrane also has…

  • Cellulose Acetate Membranes, OE 67

    GE Healthcare

    Whatman cellulose acetate membranes made from pure cellulose acetate making them suitable for biological and clinical analysis, sterility tests, and scintillation measurements. Cellulose acetate membrane filters exhibit very low protein binding capacity. They are hydrophilic making them…

  • Polypropylene (Type WPP) Membranes

    GE Healthcare

    Ideal for applications in chromatography and biotechnology labs Flexible, durable and virtually indestructible No pre-wetting required Compatible with organic solvents Autoclavable Exceptionally uniform strength means the membrane will not crack, tear, break or distort when picked up by…

  • Blotting Membranes

    GE Healthcare

    0.45 µm pore size High signal-to-noise ratios Lies flat without curling Moderately charged Nytran® N membrane is for applications that require a lower charge. It is designed for Southern and Northern blotting as well as colony and plaque lifts and Dot-/Slot-blots.…

  • PTFE Membrane Circles TE Range

    GE Healthcare

    Whatman PTFE membranes are chemically stable and inert. They are suitable for applications involving aggressive organic solvents, strong acids, and alkalis. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications…

  • PES 47MM 0.8uM 100/PK

    GE Healthcare

    Polyethersulfone (PES) membranes, circles . Whatman polyethersulfone (PES) membranes are hydrophilic, low protein binding, and stable in alkaline pH. Available in a 0.8 µm pore size, the PES membrane is recommended for aqueous applications and for biological samples. Whatman PES membrane…

  • Nuclepore Membrane Circles, Black 25mm 0.2UM / Pk 100

    GE Healthcare

    Nuclepore black dyed polycarbonate membranes are high performance membranes well suited for applications using epifluorescence microscopy. Black membranes greatly reduce background fluorescence, which results in improved microorganism and particulate visibility. Using these membranes in…

  • MicroPlus Membrane Filter

    GE Healthcare

    High mechanical strength High flow rate High-contrast grid (3.1 mm) Sterile Color/Grid: Green/Black MicroPlus are special membrane filters made from cellulose nitrate developed for microbiological quality control. These filters are especially useful for use with…

  • Cellulose Nitrate Membrane Filter Discs, WCN

    GE Healthcare

    Cellulose Nitrate, WCN Type Made from high-purity nitrocellulose. Cast to produce a uniformly porous, non-fibrous membrane. Contains non-cytotoxic wetting agent. Autoclavable at 121°C; tolerates temperatures to 130°C For colony and plaque screening

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