Development of a LC–HRMS based approach to boost structural annotation of isomeric citrus flavanones

Introduction The structural annotation of target relies on high‐resolution mass spectrometry (HRMS) information resulting in dubious identities in most cases. The accurate annotation of isomeric structures is still challenging to be confirmed with significant bottleneck. Objective This study focused on the improvement of structural annotation of candidate structures via four pairs of isomeric flavanone‐7‐ O ‐diglucosides and their basic...