Channels

 

Special Offers & Promotions

 

 

Latest News

 

 

View Channel

New Products

 

 

View Channel

Video Presentations

 

 

View Channel

Separation Science

 

 

View Channel

Microscopy & Image Analysis

 

 

View Channel

Laboratory Automation & IT Solutions

 

 

View Channel

 

Comparative Analysis of a Complex Monoclonal Antibody

publication date: Jun 15, 2018
 | 
author/source: Postnova Analytics GmbH

EAF4 modulePostnova Analytics has published a new poster that compares the suitability of Electrical Asymmetrical Flow Field Flow Fractionation (EAF4) and Size Exclusion Chromatography (SEC) for determining the physicochemical and biophysical attributes of monoclonal antibodies.

In the described work, a reference monoclonal antibody (RM 8671 mAb), from the U.S. National Institute of Standards and Technology (NIST), was used to compare separation, aggregation quantification, and recovery parameters for an EAF4-UV-MALS versus SEC-UV-MALS techniques. The NIST mAb provides a representative test molecule for development of novel technology for therapeutic protein characterization.

The poster describes how the EAF4 module enabled simultaneous measurement of size and surface charge characteristics (electrophoretic mobility) of antibodies and proteins. Further while no aggregates were detected by SEC, the FFF system showed protein / antibody aggregates represented 10% of the total mass injected. The researchers concluded that the FFF open channel design may allow for better recovery of injected mass than SEC which is particularly important when seeking to quantify aggregates present in small amounts.

Postnova Analytics EAF4 technology uniquely combines the principle of Electrical and Asymmetrical Flow FFF in just one system. In an EAF2000 system - Electrical and Cross Flow Fields are applied simultaneously across the FFF channel enabling separations by size and particle charge based on electrophoretic mobility. Combining these two powerful separation techniques in a single platform opens the door to characterising complex proteins, antibodies and viruses as well as environmental and charged nanoparticles or polymers that have proven intractable to other techniques.


more news from this company



If you have not logged into the website then please enter your details below.



 

Subscribe to any of our newsletters for the latest on new laboratory products, industry news, case studies and much more!

Newsletters from Lab Bulletin

 

Request your free copies HERE

 

 

 

Popular this Month

Top 10 most popular articles this month

 

 

Today's Picks

 


 

Looking for a Supplier?

Search by company or by product

 


Company Name:

Product:


 

 

 

 

Please note Lab Bulletin does not sell, supply any of the products featured on this website. If you have an enquiry, please use the contact form below the article or company profile and we will send your request to the supplier so that they can contact you directly.

Lab Bulletin is published by newleaf marketing communications ltd.


 

Media Partners

 

Exhibitions & Events