TY - RPRT TI - Beyond Delta Masses: MS Andrea Directly Resolves Combinatorial Peptide Modifications in Open Searches AU - Buur, L. M. AU - Winkler, S. AU - Dorfer, V. PY - 2026 DO - 10.64898/2026.03.27.714851 UR - https://www.biorxiv.org/content/10.64898/2026.03.27.714851v1 ID - 10.64898/2026.03.27.714851 ER -