Simultaneous structural identification of diacylglyceryl‐ <i>N</i> ‐trimethylhomoserine (DGTS) and diacylglycerylhydroxymethyl‐ <i>N,N,N</i> ‐trimethyl‐β‐alanine (DGTA) in microalgae using dual Li ⁺ /H ⁺ adduct ion mode by ultra‐performance liquid chromatography/quadrupole time‐of‐flight mass spectrometry

Abstract

This is the first report to achieve the ambiguous structural identification of DGTS and DGTA by UPLC/QTOF MS^E using dual Li⁺ /H⁺ adduct ion mode, which has remained a challenge in the past. It could provide new insights into their phylogeny and be helpful to characterize the natural phytoplankton communities as intact polar lipid biomarkers. Copyright © 2017 John Wiley & Sons, Ltd.