Improved Metabolomics Analysis Using an Iron-Free Flow Path

Metabolomics is a tool to decipher and understand the physiological state of a cell or organism. In recent times, LC/MS emerged as the prevalent analytical technique of choice, still with significant potential for improved robustness and ease of use.

In this webinar, we will demonstrate the advantages gained by using a biocompatible flow path over stainless steel by direct comparison of the Agilent 1290 Infinity II Bio LC and Agilent 1290 Infinity II LC. The 1290 Bio LC showed improved peak shape and resolution for phosphorylated compounds like nucleotides and sugar phosphates without apparent adsorption effects, compared to the Agilent 1290 Infinity II LC. Analyzing intracellular metabolite extracts derived from Saccharomyces cerevisiae, excellent retention time RSD values of 0.1% were generated, and essential metabolites for physiological parameters like the adenylate energy charge could be analyzed consistently. These results show that the 1290 Bio LC is the ideal choice for the seamless and robust analysis in metabolomics.


 What you will learn

•    How HILIC/MS separation is used for the detection of metabolites.
•    How an iron-free flow path delivers superior performance for phosphorylated metabolites.
•    Improved tailing factors of nucleotides
•    Robust performance in analyzing metabolites in a complex yeast extract



Andre Feith
Application Scientist
Agilent Technologies


André Feith is an HPLC application scientist at Agilent Technologies, focusing on biopharma and biotechnological topics. He was involved in testing and validation of the Agilent 1290 Infinity II Bio LC regarding bio-specific applications and more recently he has focused on analyzing new modalities like oligonucleotides and online analysis of critical quality attributes with process analytical technology (PAT). During his Ph.D., he researched at the Institute of Biochemical Engineering, University of Stuttgart, in the field of Bioanalysis, Metabolomics, and Metabolic Engineering.


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