Radiofrequency quadrupole homepage › Forums › multipole moment examples › Radiofrequency quadrupole This topic has 0 replies, 1 voice, and was last updated 5 years, 6 months ago by Letscho. Viewing 1 post (of 1 total) Author Posts May 20, 2018 at 4:03 pm #1668 Score: 0 LetschoParticipant They play a role in radiofrequency quadrupole devices to trap particles, act as mass filter or guide particles. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In