Ion Exchangers

HomeProduct Center Ion Exchangers

SERVA Ion Exchange Media and Adsorber Resins

Ion exchangers are usually solid, macromolecular polyelectrolytes in the form of macroscopic particles with a porous structure. They are insoluble in water but capable of swelling. They are able to exchange bound ions against others dissolved in the surrounding medium. The cation exchangers (polyacids) carry fixed negatively charged functional groups (anchor groups grafted onto the polymer) with positive counter-ions, while the anion exchangers (polybases) have positively charged groups fixed onto the polymer with negative counter-ions to equalize the charge. Binding and release of the counter-ions are reversible processes and dependent on their concentration and affinity to the anchor groups.

There are inorganic ion exchangers which are natural aluminium silicates, e.g. Zeolites, which are used for water softening and desalting or Bentonite, which can be used for detoxification and as an adsorbent for proteins and viruses. Furthermore there are synthetic organic ion exchange resins, which are mainly produced by polymerization. They are of fundamental importance for many industrial applications and described below in more detail.

Ion exchangers on the basis of modified agarose, cellulose or dextran are used for the separation of large biomolecules, e.g. proteins or nucleic acids (see SERVACEL® Cellulose Ion Exchangers).

Adsorber resins have a similar basic matrix as ion exchange resins, but without functional groups. Binding of substances runs via non-ionic forces (see SERDOLIT®  PAD Resins).


Shop Login




SERVA News


Markthalle:
Januar - Februar 2015


Hier geht es zur Aktion

SERVA YouTube Channel


New SERVA Brochures:
All you need for ...


 

 more

The SERVA Catalog 2014/15
is online!


 more

New Application Note:
ICPL™ - Coupled Immunoprecipitation
(ICPL-IP)


 more

Close window

Markthalle:
Januar - Februar 2015

Close window

Hier geht es zur Aktion

Titel-Markthalle_01-02-2015_1.jpg

SERVA YouTube Channel

Close window

New SERVA Brochures:
All you need for ...

Close window

 

SDS-PAGE-Brochure-Titel_1.jpg

- 2D Electrophoresis (PDF)

- SDS PAGE (PDF)

- Isoelectric Focusing (PDF)

- Native PAGE (PDF)


The SERVA Catalog 2014/15
is online!

Close window

SERVA Katalog 2015 UmschlagV4web.jpg

• Biochemicals A-Z

• Sample Preparation

• Electrophoresis

• Collagenase & Neutral Protease

• Life Sciences

• Enzymology

• Microscopy

• Ion Exchange Media

 


Find the SERVA Online Catalog 2014/15 here!

New Application Note:
ICPL™ - Coupled Immunoprecipitation
(ICPL-IP)

Close window

ICPL-IP.jpg

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

SERVA InfoMail - Get the latest information

Close window

When subscribing to »SERVA InfoMail« you will receive information about the latest product release, special promotions, new jobs at SERVA and more. This service is, of course, free of charge.
You may remove your name any time from the list of recipients.

Quick Order

Close window

Using the Quick Order field, you can add a product to your shopping cart with just one click. All you have to do: enter the Cat.No. as shown in our catalog in the format xxxxx.yy and click the Go!-Button.