Acrodisc Syringe Filters with universal membranes that are suitable for all HPLC/UHPLC analytical sample preparation, featuring a universally solvent compatible membrane in a chemically compatible housing, users need only select pore size and device size.
Millex filter units with hydrophobic Fluoropore membrane are ideal for sterilizing gases, venting sterile containers, and sterilizing or clarifying organic solutions. Specialized filter units protect hemodialysis transducers from blood and moisture. 50 mm Millex filter units are also used for vacuum line protection.
2020/12/14 · Their inert housing manufactured from high density medical grade virgin polypropylene, complete with the integrated Regenerated Cellulose (RC) membrane has a high chemical resistance against the most common HPLC solvents and is very suitable for aqueous samples. Every batch is HPLC-tested for low extractables.
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. Moreover they can be used to filter aqueous solutions as well, but because of their hydrophobic characteristics, they must be pre-wetted with ethanol or methanol before the filtration of aqueous media solutions.
Biologically inert mixtures of cellulose acetate and cellulose nitrate have made MF-Millipore membrane filters one of the most widely used membranes in analytical and research applications. MF-Millipore™ filters without Triton® surfactant contain minimum amounts of wetting agent and have a lower water extractable content than standard MF-Millipore™ filters.
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This 33 mm syringe filter with a Hydrophilic PTFE membrane, for non-sterile filtration on the Samplicity G2 system, has a 0.45 µm pore size used in preparation of aqueous & organic solutions prior to chromatography or other instrument analyses. Millipore
Membrane material PTFE PTFE PTFE PTFE Housing material PP PP PP PP Filtration area (cm 2) 1.09 1.65 4.08 4.9 Pore Size (μm) 0.2,0.45 0.2,0.45 0.2,0.45 0.2,0.45 Holdup Volume (μL) <20 <20 <100 <100 Sample Volume (mL) <10 <20 <100 <120 130
2013/9/1 · Acetonitrile hypergrade for LC-MS, methanol and acetonitrile HPLC grade and acetic acid were from Merck (Darmstadt, Germany); formic acid solution puriss. p.a. for HPLC, 50% in water was from Fluka (Steinheim, Germany); water used for all solutions was
Millex filters are available with three membranes: Millipore Express® (PES) membrane, mixed cellulose esters (MCE), and Durapore (PVDF). - Millex-GP filters feature Millipore Express (PES) membrane, which provides a unique combination of speed and six times less protein binding than competitive PES membranes.
Millex-GP filters are recommended for sterile filtering protein solutions, tissue culture media, buffers and additives. Millex filters with Durapore® (PVDF) membrane are the lowest protein-binding syringe filters available. Use them to filter protein solutions. The 0.2 µm filters are sterilizing grade.
Hydrophilic PVDF Membrane Exhibits Extremely Low Protein Binding 2.5 L of PBS containing 100 µg/mL BSA and approx 100k cpm/mL 125 I-labeled BSA was perfused through 13 mm discs. After perfusion, discs are blotted on paper towels to remove excess liquid and are then placed in a gamma counter. µg/cm 2 was calculated from cpm/discs.
2010/9/1 · Acetonitrile (HPLC grade, Merck), hexane (for analysis, Acros Organics), methanol (HPLC grade, Merck) and ultra-pure water (Simplicity System, Millipore) were used throughout the experiments. The SB-14 standard (98% purity) was obtained from Acros Organics, while SO-7 and SR-24 standards (90% and 80% purity, respectively) were obtained from Sigma–Aldrich.
