Description
Specifications Table
Product Name – Whatman ME24 ST Membrane Filter
Quantity/Pack Size – 47MM, 0.2uM (Pack of 100) | 50MM, 0.2uM (Pack of 100)
Form – Membrane Disc
Grade – Mixed Cellulose Esters (MCE)
Application – Sterile Filtration, Particle Retention, Clarification
Product Overview
The Whatman ME24 ST membrane filter is engineered for high-performance filtration in laboratory settings. Constructed from mixed cellulose esters (MCE), this filter delivers exceptional particle retention with a 0.2?m pore size, making it ideal for sterile applications. The uniform pore structure ensures consistent flow rates while minimizing extractables, which is critical for sensitive analytical procedures. Its smooth, non-fibrous surface reduces sample loss and prevents particle shedding, maintaining sample integrity. The filter?s hydrophilic nature allows for rapid wetting without pre-treatment, streamlining workflow efficiency. Compatible with aqueous and mild organic solutions, the ME24 ST is a versatile choice for general lab filtration needs. The white, grid-marked surface aids in particle visualization and counting, enhancing usability. Each pack contains 100 pre-cut discs in either 47MM or 50MM diameters, providing convenience for standard filtration setups. The filter?s thermal stability and chemical resistance further extend its applicability across various laboratory protocols, ensuring reliable performance in demanding environments.
FAQs
1. What is the composition of the Whatman ME24 ST membrane filter?
The Whatman ME24 ST membrane filter is made from mixed cellulose esters (MCE), a blend of cellulose acetate and cellulose nitrate, offering balanced chemical resistance and filtration efficiency.
2. Can this filter be used with organic solvents?
Yes, the ME24 ST is compatible with mild organic solvents like alcohols and ketones, but prolonged exposure to strong solvents may degrade the membrane.
3. How should these filters be stored to maintain performance?
Store the filters in their original packaging in a cool, dry place away from direct sunlight and moisture to prevent contamination or degradation.
4. Is the 0.2?m pore size suitable for sterilization?
Yes, the 0.2?m pore size effectively removes bacteria and most microorganisms, making it suitable for sterilization applications in lab settings.
5. Are there alternatives to the ME24 ST for higher chemical resistance?
For applications requiring higher chemical resistance, consider PTFE or nylon membrane filters, though they may differ in flow rates and particle retention properties.
