Whatman Sterile Mixed Cellulose Ester Membranes - 47 mm WME Mixed Cellulose Ester Membrane Filter without Pad, Sterile, Gridded White, 0.45 µm - 7141-114
by Whatman
In Stock
$197.99
SKU 7141-114
Discount Code: Use code TAKE5 for 5% OFF Total Purchase
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Product Information: 47 mm WME Mixed Cellulose Ester Membrane Filter without Pad, Sterile, Gridded White, 0.45 µm
Manufacturer Part # 7141-114
Description
- Mixed cellulose ester membrane, WME range, circle, black/white grid, 3.1 mm, sterile, 0.45 µm, 47 mm
- 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
| HPIS Code | 580_120_60_20 |
| Latex Free | No |
| UNSPSC | 41104921 |
