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Effects of electric field strength on IMS resolving power for the linear and 90° turn geometries (turn segment substituted for the linear segment). For the linear geometry, the RF was 750 kHz, 220 Vp-p with guard DC bias of 5 V. For the turn geometry, the RF was 685 kHz, 320 Vp-p with guard DC bias of 11 V. Theory data points were calculated using eq 1.
