The Ion Conveyor. An ion focusing and conveying device

Eur. J. Mass Spectrom. 10, 149–154 (2004)
DOI: 10.1255/ejms.630

The Ion Conveyor. An ion focusing and conveying device

Alex W. Colburn, A.E. Giannakopulos and Peter J. Derrick
Institute of Mass Spectrometry and Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom

ABSTRACT:

The control and transmission of ions or small charged droplets in the intermediate to high-pressure regime is of primary importance in areas such as atmospheric pressure ionisation. Where small apertures separate differentially pumped vacuum regions in the inlet systems to mass spectrometers, a large proportion of the available ion current is lost to the surrounding electrode structures. A new ion-optical device, named the ion conveyor, incorporating electrodynamic focusing and conveying of charged entities is described. Results from ion-optical simulations are presented demonstrating the performance of the device in various operating modes and electrode configurations.

Keywords: conveyor, focusing, ion, electrodynamic, electrospray, ion-optical, high- pressure

You can buy this paper on-line in PDF format; it costs only £11.75. Just click on the BUY on-line button. You can pay on-line through a secure server and get access immediately.