cableties的部落格

Choosing a filter does not have to be complicated – Starlab has simplified the process. Just follow these 3 steps:

Step 1: Match your application with the best pore size.

The pore size is usually determined by your application or objective. Mycoplasma removal can be performed using a 0.1 µm pore filter. Routine laboratory sterilization of most media, buffers, biological fluids and gases is usually done with 0.2 or 0.22 µm pore filter membranes. Clarification and prefiltration of solutions and solvents is best accomplished with 0.45 µm or larger filter membranes. Prefiltration to improve filter performance can also be accomplished by the use of glass fiber prefilters that can be purchased separately.

Step 2: Select the best membrane and housing material for your application.

Your filter unit must be fully compatible with the chemical characteristics of your sample. Some filter membranes contain non-toxic wetting agents that may interfere with some applications. Other membranes may bind proteins or other macromolecules leading to premature filter clogging or loss of valuable samples. Therefore, it is very important to understand their characteristics and the potential effects filter membranes can have on the solutions they contact.

Step 3: Select the correct membrane area to optimize flow rate and throughput.

The third step is selecting a filter that will have enough volume capacity or throughput to process your entire sample quickly and efficiently. This is primarily determined by the effective surface area of the membrane.

Step 4: Choose the best filter design for your application.