Agilent Deans Switch can increase the resolution of GC. It can divert the effluent from one column to a second column with a different stationary phase at specific times and for specific durations in the chromatographic run. The analyte of interest and any co-eluting impurities in the diverted peak are fully separated on the second column.
The document introduces the Agilent Capillary Flow Technology Deans Switch, a device designed to increase resolving power in Gas Chromatography (GC) by performing heart-cutting or multidimensional GC. It addresses limitations of traditional rotary valves by offering a compact design with low thermal mass, small dead volumes, and inert surfaces that prevent leaks and peak tailing.
It provides increased resolution, throughput, uptime, and accurate results by eliminating leaks and peak broadening.
Backflushing removes unwanted sample components from the head of the primary column, eliminating the need for lengthy bakeout routines.