Aug 07, 2018 · You’ll need to pre-wet with a water-miscible solvent, such as methanol, to overcome the hydrophobicity of the membrane. Polyvinylidene Fluoride (PVDF) Membrane Another material resistant to a broad range of organic solvents, PVDF is naturally hydrophobic but can be modified to a hydrophilic state.

point of the membrane, nor visible indication of chemical attack. L = ed Recommended Use. Moderate changes in physical properties. Limit The filter may be suitable for short term, non-critical use. N = ecommended. The membrane may be unstable. Not R - = nsufficient Data. Information is not available. Trial testing is recommended. I atent 7, 790

Red PTFE (Hydrophilic) Syringe Filters, 0.22 µm, 13 mm. PerkinElmer. Hydrophilic PTFE syringe filters have broad chemical compatibility and high pH resistance and are optically clear when wet with water. They are versatile filters for use with aqueous and aggressive organic solvent-based solutions and are especially ideal for HPLC sample

Nylon 6,6 Standard Nylon 6,6 . Nylon 6,6 is a polymer known for its durability, making it a reliable and long lasting membrane for filtration. It has long been used in filtering water and specialty chemicals in a variety of industries because of its versatility and chemical compatibility.

Product characteristics •The membrane is hydrophilic which can filter the liquid directly without pre-wetting to save the operation time. •PTFE membrane got excellent Chemical compatibility.lt has good tolérance to various Chemical and can be used for filtering kinds of corrosive liquids.

Hydrophilic membrane. Broad solvent compatibility. Suitable for filtration of aqueous and compatible organic solvents. Higher liquid flow than either PTFE or PVDF. Low in extractables. Low protein binding. Nylon/polyamide (NYL) Hydrophilic membrane. Resistant to a range of organic solvents. Suitable for use with high pH samples. Binds

Difference from glass fiber membrane, PTFE filter is a kind of membrane material for deep filtration. Membrane filter disc has the following characteristics: membrane filter 0.22 μm is produced from food-grade isotactic polypropylene. No additives in the whole process; stable physical and chemical properties and good compatibility.

Aijiren Technology carries a broad line of Pall Life Sciences laboratory filters for sample and solvent filtration including: HPLC sample filters in syringe filter format. Solvent filters in membrane disc format. Solvent filtration apparatus. The line includes a wide selection of membrane types and pore sizes to deliver the right lab filter for any sample

complete chemical compatibility at up to 180°C. The primary disadvantage of PTFE is that it is hydrophobic. The surface does not have an affinity to water. A simple method to understand the dif- ference between hydrophobic and hydrophilic membranes is that ”phobic” membranes are afraid of water while “philic” membranes are not. Phobic

Memtrex FE absolute pleated cartridge filters, with absolute rated polytetrafluoroethylene (PTFE) membranes, offer broad chemical compatibility with minimal extractables in a wide range of fluids and applications. The inherently hydrophobic PTFE membrane is ideally suited for the filtration of compressed air and other process gases.

Filter air and gasses, even at low differential pressures. Sartorius PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.

Review the chemical compatibility of Teflon® and PTFE with various chemicals, solvents,

Consult ANOW Microfiltration's Hydrophilic PTFE filter cartridge brochure on DirectIndustry. Page: 1/2 Hydrophilic PTFE Filter Cartridge for Solvent Filtration LPTL filter cartridges are characterized by hydrophilic PTFE membrane and polypropylene components for broad applications, widely used in Active Pharmaceutical Ingredients production in a variety of solvent filtration.

These tables show five common syringe filter materials -- Cellulose Acetate (CA), Nylon, PES, PTFE, and PVDF -- and their compatibilities with 75 common solvents. Compatibility Tables Compatibility Grades. The tables below indicate a compatibility grade for each material/solvent combination. Safe means that the combination is confirmed compatible.

The nonwoven polypropylene prefilters (with nominally-rated pore sizes) are constructed with 100% polypropylene, and exhibit similarly low extractables and broad chemical compatibility. Although technically hydrophobic, the polypropylene prefilters are easily water wetted at modest differential pressures.The filters can tolerate pH from 1 to 14