Description
Specifications Table
Product Name – Whatman ME24/21 ST Membrane Filter
Quantity/Pack Size – 47MM, 0.2uM (Pack of 100), 50MM, 0.2uM (Pack of 100)
Form – Membrane Filter
Grade – ME24/21 ST
Application – Sterile filtration, microbiological analysis, particle retention
Product Overview
The Whatman ME24/21 ST membrane filter is engineered for precision and reliability in critical laboratory applications. Constructed from high-purity mixed cellulose esters, this filter delivers consistent performance with a uniform 0.2?m pore size, ensuring efficient particle retention and sterile filtration. Its smooth, non-hygroscopic surface minimizes sample adsorption, making it ideal for applications requiring high recovery rates and minimal interference. The filter?s robust structure resists tearing and deformation under pressure, providing durability during demanding procedures. Compatible with a wide range of solvents and aqueous solutions, it maintains integrity across diverse experimental conditions. The ME24/21 ST variant is particularly valued for its low extractables, reducing the risk of contamination in sensitive analyses. Whether used in routine microbiological testing or specialized research, this filter guarantees reproducibility and accuracy, making it a staple in labs prioritizing quality and consistency.
FAQs
1. What is the material composition of the Whatman ME24/21 ST membrane filter?
The Whatman ME24/21 ST membrane filter is made from mixed cellulose esters, offering a balance of strength, chemical compatibility, and low protein binding.
2. Can this filter be autoclaved for sterilization?
Yes, the Whatman ME24/21 ST membrane filter can be autoclaved at standard conditions (121?C for 15-20 minutes) without compromising its performance.
3. Is this filter compatible with organic solvents?
The filter is compatible with many organic solvents, including alcohols and mild acids, but always verify compatibility with specific solvents before use.
4. What is the shelf life of these filters when stored properly?
When stored in a cool, dry environment away from direct sunlight, the filters retain their performance for up to 3-5 years from the date of manufacture.
5. Are there alternatives to this filter for higher flow rates?
For applications requiring higher flow rates, consider Whatman?s ME25 or ME28 series, which offer larger pore sizes while maintaining similar retention properties.
