Cellulose acetate filter papers are a versatile choice for laboratory filtration and membrane applications. This guide highlights five suitable options and explains who each product is best for. The selections emphasize good filtration performance, consistent pore sizes, and practical sizes for common lab tasks. Whether you’re performing electrophoresis, sample clarification, or general filtration, these cellulose acetate filters offer clear separation and reliable handling. The buyer-focused notes below help you compare options quickly and choose the right membrane for your workflow.
| Product | Best For | Key Feature |
|---|---|---|
| Deschem OD=50mm,0.22µm CA Membrane Filter | Small-diameter sample filtration | Cellulose acetate membrane; 50mm |
| Deschem 80mm, 0.8µm MCE Membrane Filter | High-throughput filtration | Mixed cellulose ester; 80mm; 0.8µm |
| Deschem OD 70mm, 0.80µm CA Filter | Medium-scale filtration | Cellulose acetate; 70mm; 0.80µm |
| Deschem 47mm, 0.80µm CA Filter | Compact filtration tasks | Cellulose acetate; 47mm; 0.80µm |
| Deschem 110mm, 0.45µm CA Membrane Filter | Large-sample filtration | Cellulose acetate; 110mm; 0.45µm |
Deschem OD=50mm, 0.22µm CA Membrane Filter
This CA membrane filter is designed for small-diameter filtration tasks. It is made by cellulose acetate, offering a compact option for precision work. Best for labs needing tight pore control in a 50mm format. The product’s features emphasize clean separation with low adsorption and minimal background interference during staining, which supports accurate quantitative analysis. A potential limitation is the smaller area, which may require more frequent filter changes in high-volume workflows.
200Pcs/Pack MCE Membrane Filters, 13mm, 0.45µm
These mixed cellulose ester filters offer good hydrophilicity and a 13mm diameter with 0.45µm pore size. They are well-suited for rapid filtration and high-efficiency tasks where a larger surface area is not required. They come in a 200-piece box, making them a practical choice for busy labs. A caution: the hydrophilic nature may affect sample interactions if compatibility with certain solvents is a concern.
Deschem OD=50mm,0.22µm CA Membrane Filter (Additional)
Deschem’s 50mm CA membrane provides another compact option in cellulose acetate filtration. It suits limited-space workstations and sample clarification tasks where a precise 0.22µm pore size is advantageous. Best for smaller batches or preparatory steps. Limitation: smaller diameter may reduce throughput compared to larger filters.
Deschem 80mm, 0.8µm MCE Membrane Filter
This 80mm MCE filter uses mixed cellulose esters with a relatively larger pore size of 0.8µm, enabling faster filtration suitable for high-volume tasks. Best for labs prioritizing speed and throughput without sacrificing basic filtration integrity. If your application demands finer separations, prefer a smaller pore size.
Deschem OD 70mm, 0.80µm CA Filter
This 70mm CA membrane balances manageable size with 0.80µm pore size for general filtration needs. It is a suitable middle-ground option for laboratories that require consistent performance across moderate sample volumes. Consider this when you need a reliable, everyday CA filter with moderate diameter and pore size.
Deschem 47mm, 0.80µm CA Filter
This compact 47mm CA membrane filter with 0.80µm pore size is ideal for space-constrained setups. Best for quick sample filtration with minimal footprint. If you expect larger volumes, you may prefer a bigger diameter to decrease handling frequency.
Deschem 110mm, 0.45µm CA Membrane Filter
This large-diameter 110mm CA membrane filter with 0.45µm pore size supports higher sample volumes while maintaining filtration integrity. Best for labs that need a broad filtration area for efficient workflow. A point to consider is the larger size, which requires more storage space and compatible filtration setups.
Buying Guide: Key Considerations For Cellulose Acetate Filter Papers
What pore size do you need? Smaller pore sizes (like 0.22–0.45µm) offer finer filtration, while larger pores (0.8µm) enable faster throughput with less barrier to flow. Choose based on whether your priority is clarity of separation or speed.
What diameter is appropriate? Smaller diameters fit compact spaces and small-volume tasks; larger diameters suit high-volume workflows and easier handling. Always verify compatibility with your filtration apparatus.
What is the material difference? Cellulose acetate membranes provide different adsorption properties and sample interactions compared to MCE filters. For dyeing or staining workflows, low adsorption and clean backgrounds can improve signal accuracy.
How many pieces do you need? Some products come in large packs, offering cost-efficiency for frequent use. Consider storage and shelf-life in relation to your lab’s usage rate.
What solvents or sample types are involved? Hydrophilicity and membrane composition influence interaction with aqueous solutions and certain solvents. Ensure material compatibility with your solvents and sample chemistry.
FAQ
- What is cellulose acetate used for in filtration? It is used to make membranes for filtration tasks, offering controlled pore sizes and good chemical compatibility with many aqueous samples.
- Which pore size is best for electrophoresis sample preparation? Pore sizes around 0.45–0.8µm are common for preparative and interim filtration, balancing speed and clarity.
- Are larger diameter membranes more efficient? Larger diameters provide more filtration area and can handle higher volumes, reducing the need for frequent changes.
- Is MCE better than CA for all tasks? Not necessarily; MCE filters can offer faster filtration due to pore structure, while CA membranes may provide different adsorption characteristics that matter for staining or protein work.
- How should I store filter papers? Keep them in a clean, dry place within their original packaging to avoid contamination and moisture exposure.
- Can these filters be reused? Typically, filters are intended for single-use to ensure membrane integrity and avoid cross-contamination.