Open AccessA high voltage asymmetric waveform generator for FAIMS
Author(s) -
Jesse D. Canterbury,
James A. Gladden,
Lon Buck,
Roy K. Olund,
Michael J. MacCoss
Publication year - 2010
Publication title -
journal of the american society for mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.961
H-Index - 127
eISSN - 1879-1123
pISSN - 1044-0305
DOI - 10.1016/j.jasms.2010.02.019
Subject(s) - ion mobility spectrometry , chemistry , mass spectrometry , waveform , electronics , voltage , ion , ion trap , generator (circuit theory) , filter (signal processing) , analytical chemistry (journal) , electrode , electrical engineering , chromatography , engineering , power (physics) , physics , organic chemistry , quantum mechanics
High field asymmetric waveform ion mobility spectrometry (FAIMS) has been used increasingly in recent years as an additional method of ion separation and selection before mass spectrometry. The FAIMS electrodes are relatively simple to design and fabricate for laboratories wishing to implement their own FAIMS designs. However, construction of the electronics apparatus needed to produce the required high magnitude asymmetric electric field oscillating at a frequency of several hundred kilohertz is not trivial. Here we present an entirely custom-built electronics setup capable of supplying the required waveforms and voltages. The apparatus is relatively simple and inexpensive to implement. We also present data acquired on this system demonstrating the use of FAIMS as a gas-phase ion filter interface to an ion trap mass spectrometer.