1.What is difference between hydrophilic and hydrophobic membrane filters?
Hydrophilic membrane filters are typically used with water and aqueous solutions. They can also be used with compatible non-aqueous fluids. Hydrophilic membrane filters are typically not used for air, gas or vent filtration since the filters would block flow if inadvertently wetted, by condensation for example. Hydrophobic membrane filters are typically used with compatible non-aqueous fluids. They are also commonly used as air, gas, or vent filters.
Hydrophobic membrane filters are sometimes used with water or aqueous solutions; and, in these applications, they must first be prewet with a low surface tension, water miscible fluid prior to use.
2.What are the advantages of Cellulose Acetate membranes?
Cellulose acetate (CA) membrane filters are one of the lowest protein binding filters available. They will generally have greater throughput with proteinaceous solutions when compared to other membrane filters. CA membrane filters are ideal for filtration of protein and enzyme solutions, tissue culture media and serums, biological fluids, and similar applications where maximum recovery of protein is critical.
3.What are the advantages of MCE membranes?
MCE membranes feature fast flow rates, a high protein binding capacity, and great thermal stability, making them a staple for many environmental and biological laboratories. Furthermore, they are available as presterilized, individually wrapped membranes, and can include a gridded pattern for quantifying microbial growth.
4.What are the advantages of Nylon membranes?
Nylon Membranes exhibit high protein binding, solvent resistance, and dimensional stability due to support by inert polyester.
5.What are the advantages of PES membranes?
PES Membranes are low protein binding, PES membrane filters are ideal for tissue culture media sterilization, life science and microbiology fluid applications.
6.What are the advantages of PTFE membranes?
PTFE Membranes are extremely hydrophobic and exhibit superior chemical compatability with agressive solutions.
7.What are the advantages of PVDF membranes?
Polyvinylidene difluoride (PVDF) membrane filters are mechanically strong, exhibit superior chemical resistance, and high thermal stability.
8.What are the advantages of PP depth filters?
PP depth filters exhibit good hydrophobicity and can be considered in applications that don't require the chemical compatability of PTFE.