High-field asymmetric-waveform ion-mobility spectrometry
High-field asymmetric-waveform ion-mobility spectrometry is an ion-mobility spectrometry technique in which ions at atmospheric pressure are separated by the application of a high-voltage asymmetric waveform at radio frequency combined with a static waveform applied between two electrodes. Depending on the ratio of the high-field and low-field mobility of the ion, it will migrate toward one or the other electrode. Only ions with specific mobility will pass through the device.Devices
Devices utilizing the principle of RF-DC ion-mobility spectrometry include handheld explosive trace detectors "MO-2M" and "Pilot-M".
