Internal Calibration without Internal Calibrants by Mass Difference Analysis in FT-ICR Mass Spectrometry. - Rodgers RP; Hendrickson CL; Holder Montenegro CA; Tello-Rodriguez AJ; Potu T; Shung B; Hagan M; Weisbrod CR; Giusti P; Rüger CP; Aguilera ML; Vallverdu GS (Analytical chemistry, 2025)