Coupling Capillary Isoelectric Focusing with Mass Spectrometry

LCGC International spoke with Daniel Meston and Dwight Stoll from Gustavus Adolphus College in St. Peter, Minnesota, USA, about a project they worked on with Todd Maloney from Eli Lilly in Indianapolis, Indiana, USA, to investigate the optimal performance conditions of antisense oligonucleotides (ASOs) when using hydrophilic interaction liquid chromatography (HILIC).

This article discusses several practical examples using bioinert columns, demonstrating their ability to deliver reliable, high-resolution results with precision and reproducibility.

A new method has been created for determining N-nitrosamines (NAs) in pharmaceutical preparations using liquid chromatography with tandem mass spectrometry.

A research group has developed an improved workflow for constructing machine learning (ML) models in oligonucleotide separation.

Supercritical fluid chromatography (SFC) has been optimized for the analysis of 5-, 10-, 15-, and 18-mer oligonucleotides (ONs) and evaluated for its effectiveness in separating impurities from ONs.

A QuEChERS sample preparation technique coupled with a UHPLC–MS/MS method was developed to determine 19 veterinary drug residues in foods of animal origin.