• A New Technology for Separating Free Amino Acids


A New Technology for Separating Free Amino Acids

Oct 29 2012

Chiral Technologies introduces two new immobilised zwitterionic chiral stationary phases, CHIRALPAK ZWIX(+) and CHIRALPAK ZWIX(-). These chiral phases can be used in high-performance liquid chromatography and have been developed specifically to exhibit stereoselectivity for zwitterionic molecules, notably for separations of underivatised amino acids and peptides.

Methods can be developed on these high-resolution 3-µm supports for analytical and MS- compatible enantiomer separations. The zwitterionic supports are not restricted by the position of the amino and acidic groups in the analyte, and accordingly can be used for the effective separation of alpha, beta and gamma amino acids. In addition, the ZWIX phases can be used for the separation of any amphoteric compound.

The zwitterionic ion exchangers, combining anion- and cation-exchange functional groups, have been developed by Professor Wolfgang Lindner at the University of Vienna and complement the previously commercialised CHIRALPAK QD-AX and QN-AX anion exchange columns. This technology is globally marketed exclusively by Chiral Technologies.

Digital Edition

Lab Asia 31.2 April 2024

April 2024

In This Edition Chromatography Articles - Approaches to troubleshooting an SPE method for the analysis of oligonucleotides (pt i) - High-precision liquid flow processes demand full fluidic c...

View all digital editions


Analytica Anacon India & IndiaLabExpo

Apr 15 2024 Mumbai, India

Analitika Expo 2024

Apr 16 2024 Moscow, Russia


Apr 16 2024 New York, USA

Medtec Japan 2024

Apr 17 2024 Tokyo, Japan


Apr 22 2024 Marrakech, Morroco

View all events