The Ins and Outs of HILIC Chromatography
LCGC's The Column editor, Janet Kelsey, spoke to Mark Woodruff of Fortis Technologies about the background, advantages, and applications of hydrophilic interaction chromatography and where its future lies.
Can you briefly explain the theory of HILIC chromatography?
Hydrophilic interaction liquid chromatography or HILIC is a technique that has really been around for quite some time, based somewhere between reversed-phase (RP) and normal-phase (NP) chromatography. A highly polar stationary phase, often bare silica, is used with largely a non-polar mobile phase system (water acting as a very strong solvent in HILIC) to provide retention of polar or hydrophilic molecules.
HILIC Peptide Retention Times Predicted Using New Approach
October 29th 2024Manitoba Centre for Proteomics and Systems Biology scientists produced a new means of predicting peptide retention times for hydrophilic interaction liquid chromatography (HILIC) at acidic pH in formic-acid based eluents.
Systematic Evaluation of HILIC Stationary Phases for MS Characterization of Oligonucleotides
Hydrophilic interaction chromatography–mass spectrometry (HILIC-MS) offers a flexible and efficient alternative to ion-pairing reversed-phase liquid chromatography (IP-RPLC) for oligonucleotide analysis, with column selectivity and mobile phase pH being key factors in optimizing retention and detection.
