Description
Specifications Table
Product Name – Whatman ME26 Membrane Filter
Quantity/Pack Size – 25MM, 0.6um (Pack of 100) | 47MM, 0.6um (Pack of 100) | 50MM, 0.6um (Pack of 100)
Form – Membrane Disc
Grade – Mixed Cellulose Esters (MCE)
Application – Sterile Filtration, Microbial Analysis, Particle Retention
Product Overview
The Whatman ME26 Membrane Filter is engineered for high-efficiency filtration in laboratory settings, featuring a 0.6?m pore size that ensures reliable retention of microorganisms, particles, and contaminants. Constructed from mixed cellulose esters (MCE), this filter combines mechanical strength with chemical compatibility, making it suitable for a wide range of aqueous and mild organic solutions. Its uniform pore distribution guarantees consistent flow rates and precise separation, while the hydrophobic surface minimizes non-specific binding, enhancing accuracy in analytical applications. The ME26 is sterilized via gamma irradiation, ensuring it meets stringent aseptic requirements without compromising integrity. Available in 25MM, 47MM, and 50MM diameters, each pack contains 100 discs, providing cost-effective bulk options for high-throughput workflows. The filter?s low extractables profile further reduces interference in sensitive assays, while its compatibility with standard filtration apparatus ensures seamless integration into existing protocols. Whether used for clarifying culture media, testing water quality, or preparing samples for downstream analysis, the Whatman ME26 delivers reproducible results with minimal maintenance, making it a staple in research, quality control, and industrial laboratories.
FAQs
1. What is the chemical compatibility of Whatman ME26 membrane filters?
The ME26 filters are compatible with aqueous solutions, mild acids, alcohols, and some organic solvents, but avoid strong acids, bases, or halogenated solvents that may degrade the mixed cellulose esters.
2. Can these filters be autoclaved for sterilization?
No, Whatman ME26 filters are pre-sterilized via gamma irradiation and should not be autoclaved, as excessive heat may alter the membrane structure or pore size.
3. Are there alternatives to ME26 for hydrophobic filtration?
For hydrophobic applications, consider PTFE or PVDF membrane filters, which offer broader chemical resistance and are better suited for non-aqueous or aggressive solvents.
4. How should unused ME26 filters be stored to maintain sterility?
Store the filters in their original sealed packaging at room temperature (15?30?C), away from direct sunlight and moisture, to preserve sterility until use.
5. What is the typical flow rate for a 47MM ME26 filter with water?
The flow rate depends on pressure and solution viscosity, but under standard gravity filtration, expect approximately 3?5 mL/cm?/min for pure water at 1 bar differential pressure.
