SpinKD Centrifugal Filter 30KD, 15ml, PES, Non-sterile, 20pcs/box

SpinKDa Centrifugal Filter devices provide rapid and efficient concentration and purification of biological samples, and are available in 0.5 mL, 4 mL, and 15 mL formats. Their unique vertical design maximizes filtration surface area, enabling fast processing and high sample recovery typically greater than 90% for dilute solutions while maintaining a gentle concentration environment that preserves protein activity and native conformation.
The vertical configuration also minimizes solute polarization and membrane fouling, ensuring consistent performance. Each device includes an integrated physical dead-stop to prevent over‑spinning, dryness, and accidental sample loss. SpinKD filters use PES ultrafiltration membranes with a wide range of MWCO options, offering exceptionally low protein and nucleic acid binding for reliable, high‑quality results. 
 
Features
 
 
Precise Retention & High Recovery: Delivers accurate molecular weight retention with ultra‑low protein adsorption and >90% sample recovery.
Dual‑Sided Vertical Membrane Design: Optimized vertical flow path minimizes membrane clogging, reduces holdup volume, and ensures high centrifugal efficiency.
Excellent Biocompatibility & Safety: Constructed with materials featuring minimal extractables and compliant with USP <87> for biological safety.
Anti‑Dry Filtration Locking Mechanism: Integrated safety stop prevents over‑centrifugation, ensuring stable, consistent, and reliable experimental performance.
Diverse Membrane Options: Available in multiple MWCO specifications to support a wide range of sample types and purification needs.
 
Applications
 
Concentration and desalting of proteins and nucleic acids: Efficiently reduces sample volume while maintaining molecular integrity
Buffer exchange or desalting of chromatographic component: Ideal for rapid buffer replacement prior to downstream analysis.
Harvesting biomolecules from culture media: Enables quick isolation of secreted proteins, peptides, or nucleic acids.
Virus concentration or isolation: Supports enrichment of viral particles for research and diagnostic workflows.
Coarse separation of biomolecule mixtures: Facilitates preliminary fractionation based on molecular size. 
Removal of debris and particulate removal from cell lysates: Provides a fast clarification step during sample preparation.
Bacterial and particulate removal from liquids via centrifugal filtration: Suitable for sterilization‑level clarification without chemical additives.