Figure 8From: Resolution enhancement of field asymmetric waveform ion mobility spectrometry (FAIMS) by ion focusing Trajectories of ions under the same peak-to-peak voltage with different frequencies: (A) 20 kHz 60 Vpp (B) 30 kHz 60 Vpp (C) 40 kHz 60 Vpp (D) 50 kHz 60 Vpp. Back to article page