chromatography & spectroscopy
MEMBRANE FILTERS
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Membrane filtration offer a very convenient, fast and economical separation method.
They offer below mentioned advantages;
CM: cellulose mixed ester membrane Particularly suitable for aqueous solutions. They are hydrophilic. Thermally stable to 121°C. Ideal for gravimetric analysis and are often used for contamination tests. PTFE: polytetrafluoroethylene membranes Particularly suitable with aggressive media, as well as to concentrated acids and bases. They are hydrophobic, they can be used up to 145°C. Excellent level of particle retention Large load carry capacity High permeability to air
Non-hygroscopic and biologically inert Chemical resistance to most solvents and reagents. Very high temperature resistance
NC: nitrocellulose membranes They are easily wettable and suited for filtration of aqueous solutions. In dry atmosphere these membranes are thermally stable at 125°C and can be autoclaved at 121°C. PE: polyester membranes They are hydrophilic. Particularly suitable for fine titration, dust analysis, aerosol analysis and ultra-purification of solvents. GF/C: glass fibre filter Suitable for determination of liquid scintillation counting and total suspended solids collection in potable water and in industrial waste. Grade 50C glass fibre filters are hydrophilic and medium / fast, very high loading. They resist temperatures up to 500°C. pore size code name
RC: regenerated cellulose membranes These membranes are resistant to most organic solvents. They are mostly used for filtration of solvent mixtures and ultra- purification and degassing of HPLC eluents. CA: cellulose acetate membranes They have a low protein binding capacity and they are suited for aqueous and alcoholic media. They are hydrophobic and can be used for hot gases up to 180°C.
104.01.001 104.01.002 104.01.003 104.01.004 104.01.005 104.01.006 104.01.007 104.01.008 104.01.009 104.01.010 104.01.011 104.01.012 104.01.013 catalogue number
membrane material
pack quantity 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces 100 pieces
type 1 1 1 1 1 1 1 1 1 1 1 1 2
diameter 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm 47 mm
cellulose mixed ester cellulose mixed ester
CM CM NC NC RC RC
0,20 µm 0,45 µm 0,20 µm 0,45 µm 0,20 µm 0,45 µm 0,20 µm 0,45 µm 0,20 µm 0,45 µm 0,20 µm 0,45 µm 1,20 µm
nitrocellulose nitrocellulose
regenerated cellulose regenerated cellulose polytetrafluoroethylene polytetrafluoroethylene
PTFE PTFE PE PE CA CA GF/C
polyester polyester
cellulose acetate cellulose acetate glass fibre
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