Sartorius Vivaspin™ Filtrate Centrifugal Concentrators

Catalog No.	MWCO	Material (Membrane)
14-558-221	10 kDa	Cellulose Triacetate
14-558-220	5 kDa	Cellulose Triacetate
14-558-222	20 kDa	Cellulose Triacetate
14-558-224	300 kDa	PES
14-558-223	100 kDa	PES

Catalog No. 14-558-221 Supplier Sartorius Supplier No. 13239E

Description

Remove proteins from difficult to filter samples, even whole blood. Sartorius Vivaspin™ Filtrate performs centrifugal ultrafiltration against the direction of centrifugal force for fast and simple preparation of protein-free ultrafiltrates. PES and CTA membranes for 5000 to 300,000 Dalton MWCO.

Offered with multiple MWCOs and two membrane options:

• Cellulose triacetate (CTA) features high hydrophilicity and very low non-specific binding.
• Cast without a support that could bind filtered solutes, these membranes are ideal where high target molecule recovery from the filtrate is important.
• Polyethersulfone (PES) membranes exhibit low fouling characteristics,
• Have a uniform surface, devoid of hydrophobic or hydrophillic interactions, offering excellent protein recoveries for most solutions.

Typical applications for Vivaspin™ Filtrate include:

• Sample preparation for free drug
• Metabolite or hormone analyses
• Sample deproteinization
• Separation of proteins from low molecular weight substances in biological samples
• Sample capacity of 0.5 to 2.5 mL
• May be used in fixed angle or swing bucket rotors, accepting standard conical or flat bottom 15 mL centrifuge tubes
• Typically filter 90% of the initial sample volume in 30 minutes
• Avoid premature membrane blockage by particle loaded samples
• Retrieve the ultrafiltrate immediately after centrifugation without any disassembly

Specifications

• Disposable: Single-use
• Filter Type: Ultrafiltration
• For Use With (Equipment): Centrifuge
• Material (Membrane): Cellulose Triacetate
• MWCO: 10 kDa
• Sample Volume: 2.5 mL
• Sterility: Non-sterile
• For Use With (Application): Small volume centrifugal ultrafiltration of biological samples
• Max. Force: 2000xG (Fixed Angle Rotor); 2500xG (Swinging Bucket Rotor)
• Quantity: 12 Pk.
• Type: Centrifugal Ultrafilter
• Volume (Metric): 0.5 to 2.5 mL
• Length (Metric): 93 mm
• Diameter (Metric): 14 mm