| 摘要 |
<p>A method for processing ions in mass spectrometry is provided. The method provides for processing analyte ions (110,112,114) in an ion processing cell (10) having elongated segmented rods (20,22,24,26), a circuit for applying RF voltages and a circuit for applying DC voltages selectively to the segments (30) of the segmented rods (20,22,24,26). The method comprises applying an RF field to the elongated volume (21), applying DC voltage selectively to the segments (30) to form a plurality of potential regions (120,150,160) having discrete potentials; providing analyte ions (110,112,114) to a first potential region of the plurality of potential regions (120,150,160) and processing at least a portion of the analyte ions (110,112,114) in the first potential region (120,150,160). In one embodiment, at least one potential region of the plurality of potential regions (120,150,160) is a potential well.</p> |
