Product of the Month June

Proteus X-Spinner 2.5

Easy Ultrafiltration of Membrane Proteins

The ultrafiltration unit Proteus X-Spinner 2.5 is the first centrifugal concentrator designed with membrane proteins as a key application.

The 2.5 ml non-stick UF concentrator provides the highest possible protein recoveries.
This is due to two factors: the low protein binding cellulose triacetate (CTA) membrane and critically, the design of the X-Spinner which ensures that ultra-filtration is in opposite direction to the centrifugal force.

Fig.: The working principle of the X-Spinner


X-Spinner E.png


  • Available MWCOs:
    5 kDa, 10 kDa, 20 kDa, 100 kDa and 300 kDa
  • Sample volume: 0.1 - 2.5 ml
  • Sample Recovery Rate: > 99%
  • g force: 2,500x g (swing bucket rotor) and
    2,000x g (fixed angle rotor)

The contra design also ensures that the filter does not clog (see Fig.)


 Ideal for:

  • Membrane proteins
  • Viscous sample, e.g. proteins stored in
    10 - 15% glycerol
  • Hydrophobic proteins, e.g. fibronectin
  • Protein fractions after size exclusion (SEC) or immobilized metal affinity chromatography (IMAC)
  • De-proteinization of blood and serum samples
 Ordering Information:

  Proteus X-Spinner 2.5 TRIAL Columns, assorted MWCOs
  (2x 5 kDa, 3x 10 kDa, 2x 20 kDa, 3x 100 kDa, 2x 300 kDa)

 Cat. No.
List Price
Special Price*
12 columns
 102.00 €
 71.40 €

*Promotional price is valid until June 30,  2017.

Please Note:
The "Product of the Month" promotion is for all SERVA customers within the EU and cannot be combined
with other discounts, promotions etc.



Product of the Month June:

Proteus X-Spinner 2.5

The SERVA Catalog 2017/18:


SERVA BlueNews 6/2016

New Application Note:
ICPL™ - Coupled Immunoprecipitation

New SERVA Brochures:
All you need for ...

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Product of the Month June:

Proteus X-Spinner 2.5

Easy Ultrafiltration of Membrane Proteins

This way to the Special Offer

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The SERVA Catalog 2017/18:


• Biochemicals A-Z

• Sample Preparation

• Electrophoresis

• Laboratory Equipmeng

• Collagenase & Neutral Protease

• Life Sciences

• Enzymology

• Microscopy

• Ion Exchange Media

• Pharmacopoeia

Find the SERVA Online Catalog 2017/18 here!
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SERVA BlueNews 6/2016

Please find the latest information
on new products and services here:

• 1D SDS TA Gels
• EPO Doping Analytics
• DNADecon
• New Tools in Dialysis
• Product of the Month
• Western Blot Workflow
• Sample Preparation by Protein Ark
• LED Gel Scanner BIO-1000F
• Collagenase AF GMP Grade
• Top Ten YouTube Videos

BlueNews: Issue June 2016.pdf
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New Application Note:
ICPL™ - Coupled Immunoprecipitation

ImmunoPrecipitation (IP) is widely used as a method to selectively isolate protein complexes from primary tissues. However, due to lack of specificity and selectivity of most antibodies and unspecific binding of the carrier beads, the method can produce false positives. The ICPL approach, employing stable isotope labelling and mass spectrometry, can discriminate true positive from false positive IP complexes.

SERVA ICPL™ Quadruplex Plus Kit 39233
Application Note: ICPL-IP
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