Whatman™ non-sterile mixed cellulose ester membrane filters
Suitable for E. coli culturing, enumeration of bacteria, and other culturing and cell counting methods.
Whatman™ non-sterile mixed cellulose ester membrane filters
Suitable for E. coli culturing, enumeration of bacteria, and other culturing and cell counting methods.
Choose your product
1. Pore size
2. Diameter
3. Gridded/Plain
4. Grid Color
5. Pack size
Overview
Mixed cellulose ester, circles.
- Sterile options available for critical applications.
- Excellent contrast for easier particle detection.
- Grids are nontoxic and do not inhibit bacterial growth, ensuring sample integrity.
- Black plain and black gridded membranes have a mix of cellulose nitrate and cellulose acetate.
- The membrane offers a high degree of internal surface area for greater adsorption of product.
- Higher dirt loading capacity.
- Biologically inert with good thermal stability.
- No surfactants to contaminate samples.
- Uniform microporous structure of membrane gives high flow rates.
Whatman™ mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters. Also, the color contrast provided by the filter surface facilitates particle detection and minimizes eye fatigue. The ME range has a lower cellulose acetate content compared to the WME range of membranes.
Eased counting process
In microbiological colony counting procedures, the color contrast between the surface and the colonies facilitates the counting process.
Plain or gridded
Many microbiological techniques include colony counting after incubation as the standard method of quantitation. Whatman™ gridded filters have clearly defined grid lines spaced at 3.1 mm or 5 mm intervals. The special ink used is nontoxic and completely free from bacterial growth inhibitors. Whatman™ black mixed cellulose esters are available plain for automatic colony counting applications, as well as gridded to assist in manual counting procedures. Black membranes provide contrast between residue or cell colors and the filter without having to counter-stain the membrane.
Sterile filters
For those laboratories preferring to use membranes sterilized by autoclaving for microbiological work, Whatman™ provides black gridded membranes in packs with pads ready for laboratory autoclaving.
Product specifications
Showing 40 products
Whatman™ mixed cellulose ester circle, ME Range (ME 29), plain, 3 µm, 47 mm (100/Pk)
10400712
In stock6 available
Whatman™ mixed cellulose ester circle, ME Range (ME 27), plain, 0.8 µm, 25 mm (100/Pk)
10400906
In stock6 available
Whatman™ mixed cellulose ester circle, ME Range (ME 27), plain, 0.8 µm, 47 mm (100/Pk)
10400912
In stock38 available
Whatman™ mixed cellulose ester circle, ME Range (ME 26), plain, 0.6 µm, 47 mm (100/Pk)
10401512
In stock6 available
Whatman™ mixed cellulose ester circle, ME Range (ME 26), plain, 0.6 µm, 50 mm (100/Pk)
10401514
In stock8 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 25 mm (100/Pk)
10401606
In stock21 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 47 mm (100/Pk)
10401612
In stock23 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 50 mm (100/Pk)
10401614
In stock31 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 90 mm (50/Pk)
10401618
In stock16 available
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 47 mm (100/Pk)
10401712
In stock9 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), white/black grid 3.1 mm, 0.45 µm, 47 mm (100/Pk)
10406812
In stock34 available
Whatman™ mixed cellulose ester circle, ME Range (ME 28), plain, 1.2 µm, 25 mm (100/Pk)
10400806
Selling fast5 available
Whatman™ mixed cellulose ester circle, ME Range (ME 28), plain, 1.2 µm, 47 mm (100/Pk)
10400812
Selling fast3 available
Whatman™ mixed cellulose ester circle, ME Range (ME 27), plain, 0.8 µm, 50 mm (100/Pk)
10400914
Selling fast1 available
Whatman™ mixed cellulose ester circle, ME Range (ME 26), plain, 0.6 µm, 25 mm (100/Pk)
10401506
Selling fast4 available
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 142 mm (25/Pk)
10401631
Selling fast4 available
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 25 mm (100/Pk)
10401706
Selling fast4 available
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 142 mm (25/Pk)
10401731
Selling fast2 available
Whatman™ mixed cellulose ester circle, ME Range (ME 29), plain, 3 µm, 25 mm (100/Pk)
10400706
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 29), plain, 3 µm, 50 mm (100/Pk)
10400714
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 28), plain, 1.2 µm, 50 mm (100/Pk)
10400814
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 28), plain, 1.2 µm, 100 mm (50/Pk)
10400821
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 27), plain, 0.8 µm, 37 mm (100/Pk)
10400909
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 27), plain, 0.8 µm, 100 mm (50/Pk)
10400921
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 37 mm (100/Pk)
10401609
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 100 mm (50/Pk)
10401621
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 110 mm (50/Pk)
10401626
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), plain, 0.45 µm, 50 mm, low C (100/Pk)
10401664
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 50 mm (100/Pk)
10401714
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 100 mm (50/Pk)
10401721
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 24), plain, 0.2 µm, 110 mm (50/Pk)
10401726
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), white/black grid 5 mm, 0.45 µm, 47 mm (100/Pk)
10406512
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), white/black gride 3.1 mm, 0.45 µm, 25 mm (100/Pk)
10406806
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), white/black grid 3.1 mm, 0.45 µm, 50 mm (100/Pk)
10406814
Stock on request
Whatman™ mixed cellulose ester circle, ME range (ME 28), white/black grid 3.1 mm, 1.2 µm, 47 mm (100/Pk)
10407512
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), green/black grid 3.1 mm, 0.45 µm, 50 mm (100/Pk)
10409414
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 25), black/white grid 3.1 mm, 0.45 µm pore size, 50 mm (100/Pk)
10409714
Stock on request
Whatman™ mixed cellulose ester circle, ME Range (ME 26), black/white grid 3.1 mm, 0.6 µm, 50 mm (100/Pk)
10409814
Stock on request
Whatman™ mixed cellulose ester circle, WME Range, gridded, white/black grid 3.1 mm, 0.45 µm pore size, 47 mm (100/Pk)
7141-004
Stock on request
Whatman Mixed Cellulose Ester Circle WME Range, gridded, white/black grid 3.1 mm, autoclave pack, 0.45 µm pore size, 47 mm (100/pkg)
7141-204
Stock on request
Product availability is not guaranteed and subject to change.
