Analytical / Chromatography

Product Overview

Frequently Asked Questions - over 60 topics to assist you with chiral chromatography!

Chiral Gas Chromatography Columns

Astec CHIRALDEX™ Capillary GC Columns
Supelco DEX Capillary GC Columns


Chiral HPLC Columns

Astec CHIROBIOTIC™ Chiral HPLC Columns

CHIROBIOTIC phases, based on covalently bonded macrocyclic glycoproteins to high purity silica gel, offer stability while retaining essential components for chiral recognition. Useful for LC-MS chiral applications and when reversed-phase solvents (methanol/water, acetonitrile/water) are preferred over normal phase solvents.

Astec CYCLOBOND™ Chiral HPLC Columns

These bonded cyclodextrin stationary phases have the ability to form inclusion complexes, and allow for chemical separations by selectively including a wide variety of organic molecules from solution into the cyclodextrin cavity. Astec CYCLOBOND I columns are β-cyclodextrin bonded and Astec CYCLOBOND II are γ-cyclodextrin bonded.

Astec CLC (Copper Ligand Exchange) Chiral HPLC Columns

Using the copper ligand concept, this phase resolves hydroxy acids like lactic, malic, tartaric and mandelic acids. The Astec CLC phase can also resolve amino acids other amines, and bi-functional racemates, like amino alcohols, by the same mechanism. In theory, any analyte that can complete the coordination with the copper ion can be resolved.

Astec P-CAP and P-CAP-DP (Polycyclic Amine Polymer) Chiral HPLC Columns

These chiral phases offer a new bonding technology, primarily used in normal phase, for the separation of racemic compounds. Structural conformation and hydrogen bonding interactions are the driving mechanisms. Separations, including preparative, have been run in a variety of solvents including pure acetone, heptane/ethanol, dichloromethane/methanol and ethyl acetate.

Protein Based Chiral HPLC Columns

Chiral-AGP phase offers α1-acid glycoprotein as chiral selector, Chiral-CBH phase offers cellobiohydrolase as chiral selector, and Chiral-HSA phase offers human serum albumin as chiral selector - immobilized on porous 5 µm spherical silica particles, and typically used in reversed-phase mode.


Achiral HPLC Columns

Polymer Based HPLC Columns

 

apHera™ High pH Reversed-Phase & Amino

Silica Based HPLC Columns

 

Astec Diol, PHOLIPIDEC®, Silica, C18, and C8


Instruments to Enhance LC Separations

 

JETSTREAM PLUS Column Thermostat