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Info

 

Membrane

Membranele permit o separare foarte convenabila , rapida și economica.

 

Tipuri de membrane

 

Material Proprietati si porozitate Produs
Cellulose mixed esters - suitable for aqueous solutions

- also available sterile and/or   with grid

- recommended for gravimetric   analysis

- autoclaving possible at 121 °C

- economical

- pore sizes 0.2 - 0.45 µm

PORAFIL CM
Cellulose mixed esters,

fabric-reinforced

- suitable for aqueous solutions

- higher mechanical stability than PORAFIL® CM

- pore sizes 0.2 - 0.45 - 0.8

PORAFIL MV
Cellulose nitrate - thermally stable up to 125 °C

- autoclaving possible at 121 °C

- pore sizes 0.2 - 0.45 µm

PORAFIL NC
Polycarbonate - very low halogen blank values

- suitable for quantitative AOX

determination

- thermally stable up to 140 °C

- pore sizes 0.4 µm

PORAFIL PC
Cellulose acetate - suitable for aqueous and many alcoholic media

- low protein binding capacity

- thermally stable up to 180 °C

- pore sizes 0.2 - 0.45 - 0.8 -  1.2 µm

PORAFIL CA
Polytetrafluoroethylen (PTFE) - hydrophobic membrane

- suitable for almost all solvents, chemical resistance towards  acids and bases

- for filtration of aggressive media

- thermally stable up to 145 °C

- pore sizes 0.2 - 0.45 - 1.0 -  3.0 µm

PORAFIL TE
Polyester - chemically very resistant membrane ( not as stable as PFTE)

- suitable for TOC/DOC determination

- thermally stable up to 150 °C

- pore sizes 0.2 - 0.4 - 1.0 - 5.0 µm

PORAFIL PE
Regenerated cellulose - suitable for all media except strong acids and bases

- thermally stable up to 180 °C

- pore sizes 0.2 - 0.45 µm

PORAFIL RC