Figure 10From: Resolution enhancement of field asymmetric waveform ion mobility spectrometry (FAIMS) by ion focusing Spectrum of acetone under different DC focus voltages when peak-to-peak asymmetric waveform RF voltage is 850 V: (A) no focus (B) 0–2.5V-0-2.5V-0 (C) 0-6V-0-6V-0 (D) 0-9V-0-9V-0 (E) 0-15V-0-15V-0 (F) 0-21V-0-21V-0. Back to article page