Description
Specifications Table
Product Name – Whatman ME27/21 ST Membrane Filter
Quantity/Pack Size – 100
Form – Membrane Filter
Grade – Mixed Cellulose Esters (MCE)
Application – Sterile Filtration, Microbial Analysis
Product Overview
The Whatman ME27/21 ST membrane filter is a high-performance filtration solution designed for precision and reliability in laboratory applications. Constructed from mixed cellulose esters (MCE), this hydrophilic membrane ensures consistent flow rates and high retention efficiency for particles as small as 0.8 micrometers. The 47mm diameter makes it compatible with standard filtration setups, while its sterile nature guarantees contamination-free results. The membrane’s uniform pore structure and mechanical strength make it ideal for demanding filtration tasks, including microbial analysis and sample clarification. Its white, grid-marked surface allows for easy particle visualization and counting, enhancing workflow efficiency. The filter is compatible with a wide range of aqueous solutions and is resistant to most organic solvents, ensuring versatility across different protocols. Whether used in research, quality control, or routine testing, this membrane filter delivers reproducible performance, reducing the risk of clogging and ensuring long-lasting use. The pack of 100 provides ample supply for high-throughput applications, minimizing downtime and maximizing productivity.
FAQs
1. What is the pore size of the Whatman ME27/21 ST membrane filter?
The Whatman ME27/21 ST membrane filter has a pore size of 0.8 micrometers, making it suitable for fine particle retention.
2. Is this membrane filter compatible with organic solvents?
Yes, the mixed cellulose esters material offers good resistance to many organic solvents, though compatibility should be verified for specific applications.
3. Can this filter be used for microbial analysis?
Absolutely, the 0.8µm pore size and sterile nature make it well-suited for microbial enumeration and analysis.
4. How should I store these membrane filters to maintain their integrity?
Store the filters in their original packaging in a cool, dry place away from direct sunlight and moisture to preserve their performance.
5. What alternatives exist if I need a different pore size?
Whatman offers a range of membrane filters with varying pore sizes, including 0.2µm and 0.45µm options, depending on your filtration needs.
