HILIC Stationary Phases: Polymer- versus Silica-Based Columns
A comparison of polymer- and silica-based stationary phases used in hydrophilic interaction chromatography (HILIC) for saccharide analysis.
Hydrophilic interaction chromatography (HILIC) is becoming more popular and a wide range of HILIC stationary phase are available on the market. The surface of HILIC stationary phase is often modified with different types of polar functional groups, including amide-, amino-, diol- and cyano groups. The base material can be either silica or polymer, but like reversed-phase columns, the majority of HILIC columns on the market are silica-based. This is possibly because analysts are unfamiliar with polymer-based columns and regard them as expensive and offer lower resolutions than silica-based columns. This article discusses the advantages of polymer-based HILIC columns compared to silica-based HILIC columns for saccharide analysis
Inside the Laboratory: The Zydney Group at Pennsylvania State University
November 26th 2024In this edition of “Inside the Laboratory,” Andrew Zydney of Pennsylvania State University discusses his laboratory’s work with using high performance liquid chromatography (HPLC) to analyze biopharmaceutical products before and after membrane separation processes.
Green Chemistry: What is it (and What Is It Not)? And How Does It Apply to Gas Chromatography?
October 31st 2024Everyone is talking about sustainability, and organizations are creating sustainability programs. But what does green chemistry really mean, and how does it apply to gas chromatography?
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.
