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The application of dipolar direct current (DDC) to the radio frequency‐only ion guide (Q0) of a hybrid quadrupole/time‐of‐flight mass spectrometer for collision‐induced declustering of large bio‐ions is described. As a broadband technique, ion trap DDC collisional activation (CA) is employed to decluster ions simultaneously over a relatively broad mass‐to‐charge (m/z) range. Declustering DDC CA can...
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