Achieving high-purity protein samples is critical for accurate structural analysis and downstream functional assays. Professional laboratory sample purification tools provide the advanced membrane technology required to concentrate and desalinate biological macromolecules with minimal loss. As a vital component of our life sciences ecosystem, these tools support the rigorous sample preparation workflows found in our proteomics range, ensuring optimal sample quality for diagnostic research.
Why Choose Professional Purification Tools?
Our curated collection of centrifugal concentrators and tangential flow systems is designed for high recovery and efficiency:
- Precision Centrifugal Concentration: We stock Sartorius Vivaspin 500 and Vivaspin 6 units, engineered for rapid concentration of small to mid-volume samples (up to 6 mL) with various MWCO options.
- High-Volume Processing: Utilize Sartorius Vivaspin 20 Concentrators (2-20 mL), featuring twin vertical membranes for ultra-fast filtration and high solute recovery.
- Advanced Tangential Flow Filtration: Explore the Sartorius VIVAFLOW 50R and Vivaflow SU systems, ideal for laboratory-scale purification of larger volumes up to 5 liters.
- Specialized Membrane Materials: Select Hydrosart or PES membranes, available in specific MWCO ratings like 10,000 or 100kDa, to match the molecular weight of your target protein.
LabFriend supplies purification solutions from the world-leading manufacturers listed in our specialized range:
- Biochrom: Specialist in laboratory instrumentation for amino acid analysis and protein quantification.
- Repligen: Leading provider of advanced bioprocessing and protein purification technologies.
- Sartorius: The primary provider of Vivaspin and Vivaflow systems, offering industry-leading membrane performance for laboratory-scale purification.
Superior sample purity is the foundation of molecular characterization; to further enhance your laboratory system, we recommend exploring these related categories:
- Protein Electrophoresis: Use Thistle Scientific OmniPage systems to verify the purity and separation of your concentrated protein samples.
- ELISA: Utilize Thermo Nunc microplates for quantitative analysis of the purified proteins generated by your Vivaspin units.
- Blotting Solutions: Explore Sartorius or Hahnemühle papers for the transfer and detection of purified molecular targets.
- Blot Imaging Systems: Use Thistle Scientific ChemiPRO modules to document and quantify the final results of your purification workflow.
Unsure if your protocol requires a Vivaspin 500 for small volumes or a Vivaflow 50R for large-scale concentration? Our team provides local technical support to help you find the correct purification solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. How do I choose the correct MWCO for my protein?
As a general rule, select a Molecular Weight Cut-Off (MWCO) that is 2 to 3 times smaller than the molecular weight of the protein you wish to concentrate to ensure maximum retention.
2. What is the benefit of the twin vertical membranes in the Vivaspin 20?
The twin vertical membrane design provides a larger surface area for filtration, which minimizes membrane fouling and allows for significantly faster concentration times compared to single-membrane units.
3. Can Vivaflow systems be reused?
While the Vivaflow 50R is designed for multiple uses after proper cleaning and storage, the Vivaflow SU (Single Use) is optimized for applications where cross-contamination must be strictly avoided.
4. Are Vivaspin concentrators compatible with standard laboratory centrifuges?
Yes, Vivaspin 500, 6, and 20 units are designed with standardized dimensions to fit into most common fixed-angle or swing-out centrifuge rotors.
