Description
Specifications Table
Product Name – Whatman ME28/21 ST Membrane Filter
Quantity/Pack Size – 47MM, 0.8uM (Pack of 1000), 50MM, 0.8uM (Pack of 100), 47MM, 0.8uM (Pack of 100)
Form – Membrane Disc
Grade – Hydrophilic, Sterile
Application – Solution clarification, particulate removal, pre-filtration
Product Overview
The Whatman ME28/21 ST Membrane Filter is designed to provide an optimal balance between flow rate and particle retention, making it an excellent choice for solution clarification and pre-filtration applications. With a 0.8?m pore size, this filter efficiently removes fine particulates and microorganisms while maintaining a high flow rate, reducing processing time in laboratory workflows. The mixed cellulose ester construction ensures chemical compatibility with a broad spectrum of solvents and aqueous solutions, while the hydrophilic nature allows for immediate wetting and consistent performance. Sterile packaging eliminates the risk of contamination, ensuring the filter is ready for use in critical applications. The uniform pore distribution minimizes clogging and maximizes throughput, even with challenging samples. This filter is particularly useful in scenarios where rapid filtration is required without compromising on clarity, such as in sample preparation or buffer filtration. Its robustness and reliability make it a preferred choice for researchers and technicians seeking efficient and reproducible results.
FAQs
1. What types of particles does the 0.8?m pore size retain?
The 0.8?m pore size effectively retains fine particulates, yeast, and some bacteria, making it suitable for clarifying solutions and pre-filtration.
2. Can this filter be used for air filtration?
While primarily designed for liquid filtration, it can be used for air monitoring applications where particulate capture is required, though flow resistance should be considered.
3. Is this filter compatible with acidic solutions?
The mixed cellulose ester material offers moderate resistance to acids, but prolonged exposure to strong acids may degrade the membrane over time.
4. How does the flow rate compare to a 0.45?m filter?
The 0.8?m pore size allows for a higher flow rate compared to 0.45?m filters, as larger pores offer less resistance to liquid passage.
5. Can this filter be used in tandem with finer filters?
Yes, it is often used as a pre-filter to extend the life of finer membranes, such as 0.22?m or 0.45?m filters, by removing larger particulates first.
