MS® Mixed Cellulose Esters (MCE) Membrane Filter

MS® mixed cellulose ester(MCE) membrane filters are composed of cellulose acetate and cellulose nitrate. Because MCE membrane is biologically inert, it’s widely used in analytical and research applications. MCE membrane filter is characterized by smoother and more uniform surface than pure nitrocellulose filter. Also, the color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue.

Many microbiological techniques include colony counting after incubation as the standard method of quantification. Gridded filters have clearly defined grid lines spaced at 3.1 mm intervals. The special ink used is nontoxic and completely free from bacterial growth inhibitors. White gridded disks are designed for the recovery and retention of E. Coli bacteria in water/waste-water analysis as well as other microbiological tests. Black mixed cellulose esters(MCE) are available plain for automatic colony counting applications, as well as gridded to assist in manual counting procedures. Black MCE membranes provide contrast between residue or cell colors and the filter without having to counter-stain the membrane.

Membrane solutions LLC also supplies sterile gridded membrane filters with or without pads.

 

Application

Application Color Pore Size(µm)
Microdialysis of DNA and proteins White 0.1
Sterilizing filtration, bioassays White 0.22
Sterilizing filtration, air monitoring, particle monitoring, particle removal, bioassays White 0.3
Clarification of aqueous solutions, particle removal and analysis, microbiology analysis White 0.45
Fluorescent bacteriological assays, particle monitoring, bioassays Black 0.45
Particle monitoring, particle removal, dairy microbiology, retention of yeasts, molds and algae White 0.65
Air monitoring, particle monitoring, particle removal, bioassays White 0.8
Fluorescent assays, particle monitoring, air monitoring Black 0.8
Clarification of aqueous solutions White 1
QC of fluid holding tanks, fluid monitoring, air monitoring, particle collection and analysis White 3
QC of fluid holding tanks, fluid monitoring, particle collection and analysis White 5
QC of fluid holding tanks, fluid monitoring, air monitoring, particle collection and analysis White 8

 

Features

  • High porosity
  • High protein binding can be blocked by pre-treatment or utilized in application
  • High purity: Triton-free
  • Sterile options available for critical applications
  • Biologically inert with good thermal stability
  • High degree of internal surface area for greater adsorption of product

 

Specification

Pore Size(um) Color Bubble Point(Bar) Water Flow Rate (mL/min/cm2) Air Flow Rate (L/min/cm2) Porosity
0.1 White 14.1 1.6 0.5 74
0.22 White 3.62 19 2 75
0.45 White 2.23 60 5 79
0.65 White 1.18 135 9 81
0.8 White 0.95 180 15 82
1 White 0.77 270 20 82
3 White 0.69 320 28 83
5 White 0.56 560 30 84
8 White 0.4 600 63 84