LCGC Europe-01-01-2004

This month's "GC Connections" column provides advice on how to select the right gases and thus alleviate the problems associated with their use. It offers points to check with regard to gas grades, purities and impurities and how to ensure gas quality.

In the first of this new column, Michael Balogh takes a look at source design and the strengths of multimode ionization, such as its ability to switch at high speeds between electrospray and atmospheric-pressure chemical ionization.

This month's column examines several possible causes of peak splitting and presents some guidelines for isolating the problem source.

This article describes the basis of OPLC and its instrumentation, and provides brief details of recent applications for which this technique is suited.