Figure 7From: Resolution enhancement of field asymmetric waveform ion mobility spectrometry (FAIMS) by ion focusing Trajectories of ions under the same frequency with different peak-to-peak voltages: (A) 25 kHz 20 Vpp (B) 25 kHz 40 Vpp (C) 25 kHz 60 Vpp (D) 25 kHz 80 Vpp. Back to article page