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(a) - Schematic of the Bruker Daltonics ultrOTOF-Q® quadrupole-TOF mass spectrometer showing the retrofitted RF-free EMS ECD/CID cell’s location in the segmented collision/cooling multipole section shortened by removing the first segment (CQ1) to accommodate the EMS cell. (b) - Cross-section of the EMS cell’s interior showing the location and design of the centrally located electron filament and grid assembly.
