The GHP membrane used in Pall Laboratory Acrodisc® syringe filters, centrifugal devices and Acroprep™ filter plates will be discontinued due to the rationalization of a key material from our supplier. However we are excited to announce the launch of the NEW wwPTFE universal membrane as a direct replacement for GHP filtration products.
Hold up volume less than 30 µL. Less than 100 mL: Use 25-mm Acrodisc. Hold up volume less than 100 µL. 4. Use the solvent compatibility chart to determine if the solvent used is compatible with the solvent being run through the cartridge. Acrodisc® syringe filters membrane (GXF/GHP), diam. 25 mm
4562 - GHP Membrane - Acrodisc Syringe Filters, 25mm, Pall . Product description. "These syringe filters offer a choice of filter media: hydrophobic PTFE membrane for exceptional chemical and temperature compatibility -hydrophilic nylon membrane for excellent chemical compatibility with esters, bases, and alcohols, without prewetting -GHP (hydrophilic polypropylene) membrane for low protein
Membrane disc filters, GH Polypro (GHP) Pall GHP Polypropylene membrane will be discontinued effective October 31st, 2019. This discontinuation affects devices including Centrifugal Devices, Syringe Filters, Filter Plates, and Membrane Filter Discs. Download our application note under 'Related Items' below to see how our next generation
Products name: 10-20mL 18mm Screw Thread Headspace ND18: Dimension: 18mm: Cap Color: Silver: Septa details: White, Red, Blue, 1.3-1.6mm thickness. Material: Aluminum
GH Polypro (GHP) Membrane Disc Filters All purpose, universal membrane with maximum chemical compatibility for both aqueous solutions and aggressive solvents Specifications Filter Media Hydrophilic polypropylene Pore Size 0.2 and 0.45 µm Typical Thickness 0.2 µm: 101 µm (4.0 mils) 0.45 µm: 114 µm (4.5 mils) Typical Water Flow Rate mL/min
Nylaflo™ Membrane Disc Filters. Useful for a wide range of both aqueous and solvent-based applications. Excellent chemical compatibility with esters, bases, and alcohols. Available in 0.2 and 0.45 µm pore sizes, in diameters ranging from 13 to 142 mm.
Syringe Filters Solvent Compatibility Chart 1 Protect any analytical system. 2 Extend LC column lifetime. 3 Achieve more reproducible analyses. 4 Variety of membranes, porosities, and diameters available. 5 Luer lock inlet provides strong, leak-tight syringe connection to withstand filtration pressure.
Choose a filter or membrane based on: 1) Chemical compatibility of the membrane and housing with your sample matrix. 2) Size and amount of particulates in the sample. 3) Potential interactions (binding) between the membrane and sample components. 4) Special considerations such as requirement for prefilter or inorganic ion certification.
General description. These offer high quality filtration for analytical samples. Certified for HPLC to ensure low extractables. Available in a broad range of membranes to meet sample compatibility requirements. The 25 mm Acrodisc is recommended for sample volumes from 5 to 100 mL. The 13 mm size is recommended for samples under 10 mL in volume.
Filter Media Hydrophilic polypropylene Pore Size 0.2 and 0.45 µm Typical Thickness 0.2 µm: 101 µm (4.0 mils) 0.45 µm: 114 µm (4.5 mils) Typical Water Flow Rate mL/min/cm2at 0.7 bar (70 kPa, 10 psi) 0.2 µm: 20 0.45 µm: 31 Maximum Operating Temperature 55 °C (131 °F) Minimum Bubble Point - Water 0.2 µm: 2.9 bar
Mobile phase filtration is performed prior to placing the solvent into the solvent reservoir. Buffered mobile phase solvents require daily filtration with a 0.2 μm filter to eliminate microbial growth that could increase the baseline. The primary concern when choosing a solvent filter is solvent compatibility with the filter material.
GH Polypro membrane solvent compatibility manufacturer GH Polypro (GHP) Filters | Canadawide All purpose, universal hydrophilic polypropylene membrane with maximum chemical compatibility for filtering both aqueous solutions and aggressive solvents.
Membrane Type (PTFE, GHP, PVDF, Nylon) — Typically, the first step in selecting a suitable filter is to choose a membrane that is chemically compatible with the sample (see chart opposite). For aqueous samples, it is preferable to use a hydrophilic membrane (GHP, PVDF or Nylon) versus a hydrophobic membrane (PTFE).
The main application of these membrane filters ist the filtration of air, gases and chemicals. PTFE membrane filters have an excellent chemical compatibility (pH 1 to 14), so that they are also used for the filtration of solvents and acids, to which other filter types are not resistant.