In comprehensive two dimensional gas chromatography (GCxGC), two capillary columns are connected in series through an interface known as a 'thermal modulator'. This device transforms effluent from the first capillary column into a series of sharp injection-like chemical pulses suitable for high-speed chromatography the second column. Dramatic increases in the resolving power, sensitivity, and speed of the gas chromatograph result. This paper describes the development of a robust and reliable thermal modulator for GC x GC.
|Original language||English (US)|
|Number of pages||8|
|Journal||HRC Journal of High Resolution Chromatography|
|State||Published - Jan 20 1999|
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)