Specifications Table

Product Name – Whatman Protein Prep Syringe Filter
Quantity/Pack Size – 150 units (13mm, 0.2um RC), 150 units (13mm, 0.45um C), 150 units (30mm, 0.45um RC), 150 units (30mm, 0.2um RC)
Form – Syringe Filter
Grade – Laboratory Grade
Application – Protein Purification, Sample Preparation

Product Overview

Whatman Protein Prep syringe filters are engineered for high-efficiency protein purification and sample preparation in laboratory settings. Featuring a low protein-binding regenerated cellulose (RC) or cellulose acetate (C) membrane, these filters minimize sample loss while ensuring sterility and consistency. The 0.2um and 0.45um pore sizes cater to different filtration needs, from removing particulates to sterilizing solutions. The 13mm and 30mm diameters accommodate varying sample volumes, making them versatile for small-scale and larger applications. Each filter is individually wrapped to maintain sterility and is compatible with standard syringe barrels for easy integration into existing workflows. The robust housing prevents leaks, while the non-pyrogenic construction ensures no interference with downstream assays. Whether used for protein concentration, buffer exchange, or general sample clarification, these filters deliver reliable performance with minimal protein adsorption, preserving sample integrity and yield. The pack size of 150 units ensures cost-effective bulk usage without compromising quality.

FAQs

1. What is the membrane material in Whatman Protein Prep syringe filters?

The filters use either regenerated cellulose (RC) or cellulose acetate (C) membranes, depending on the variant, both optimized for low protein binding.

2. Are these filters compatible with aqueous and organic solvents?

Yes, the RC membrane is compatible with both aqueous solutions and mild organic solvents, while the C membrane is best suited for aqueous applications.

3. How do I know which pore size to choose for my application?

Use 0.2?m for sterilization or removing fine particulates, and 0.45?m for general clarification or pre-filtration before chromatography.

4. Can these filters be autoclaved for additional sterilization?

No, these filters are pre-sterilized and should not be autoclaved, as it may damage the membrane or housing.

5. What is the maximum pressure these filters can withstand?

The filters are designed for standard syringe-driven applications, typically up to 5 bar (72.5 psi), depending on the sample viscosity.