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Mixed Cellulose Esters Membrane

Product code:

MCM

Johnson Test Papers’ MCE (mixed cellulose ester) membrane filters are made with cellulose nitrate and cellulose acetate. MCE membrane filters have a more consistent surface compared to pure nitrocellulose filters, and provide an improved colour contrast to enable particle detection and reduce eye strain. They are extensively used in analytical and research applications as they are biologically inert.

Gridded filters have been specifically designed with grid lines spaced at 3.1 mm intervals to assist in colony counting, the standard method of quantification used in many microbial techniques. The ink used is free from bacterial growth inhibitors and nontoxic. For the recovery and retention of E. Coli bacteria in water/waste-water analysis and other microbial tests there are a range of white gridded disks. Black MCE membrane filters are designed to provide a contrast between the filter and residue without having to counter stain the membrane. Plain black mixed cellulose esters are available for automatic colony counting applications whilst gridded mixed cellulose esters aid manual counting procedures.

Key Features
  • High porosity
  • High protein binding - this can either be minimised by pre-treatment or used in application
  • High purity: Triton-free
  • Sterile alternatives available for relevant applications
  • Excellent thermal stability and biologically inert
  • Maximum adsorption of product due to high degree of internal surface area
Applications
  • Microdialysis of DNA and proteins
  • Sterile filtration
  • Bioassays
  • Air monitoring
  • Particle monitoring
  • Particle removal
  • Clarification of aqueous solutions
  • Microbiological analysis
  • Fluorescent assays
  • Fluorescent bacteriological assays
  • Dairy microbiology
  • Retention of yeasts, molds and algae
  • Quality control of fluid holding tanks
  • Fluid monitoring
  • Particle collection and analysis

Pore Size
(μm)
Color Bubble Point
(Bar)
Water Flow Rate
(mL/min/cm2)
Air Flow Rate
(L/min/cm2)
Porosity
Pore Size (μm)0.22 ColorWhite Bubble Point3.62 Air Flow Rate (L/min/cm2)19 Air Flow Rate (L/min/cm2)2 Porosity75
Pore Size (μm)0.45 ColorWhite Bubble Point2.23 Water Flow Rate 60 Air Flow Rate (L/min/cm2)5 Porosity79
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In stockIn stockIn stock
Product Code Sterile Pore Size Diameter (mm) Pack Size In Stock Price Qty
product code MCM047020 sterile No pore size 0.22 diameter (mm) 47 pack size 100
IN STOCK
Price £24.99 Quantity
product code MCM047020SW sterile Yes pore size 0.22 diameter (mm) 47 pack size 100
IN STOCK
Price £17.99 Quantity
product code MCM047045SW sterile Yes pore size 0.45 diameter (mm) 47 pack size 100
IN STOCK
Price £17.99 Quantity

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