Presentation Profile
GC Method Translation in Adsorption Gas Chromatography (PLOT columns)
Currently Scheduled: 10/13/2021 - 9:35 AM - 10:05 AM
Room: Iris Room
Main Author
Katarina Oden - Restek
- Keith Irwin - Restek
- Jaap de Zeeuw - Restek
Abstract:
Adjustments made to the GC method parameters, like inlet/outlet pressure or flow, carrier gas, or even different capillary column dimensions, can lead to retention time shifts of the analytes or even changes in elution order. That is why one of the most valuable tools when modifying/developing a GC method are method translators. The method translators calculate new analysis conditions by preserving the same elution temperature for each analyte, thus maintaining the same elution order. Using these tools, the method can be translated to a different; column dimension, carrier gas, column length, for example, with no time spent on the method development.
Method translation works well for columns with a liquid stationary phase where the principle of separation is based on partitioning. How well do the translation principles work in PLOT column chromatography (gas/solid chromatography) where separation relies on adsorption/desorption mechanisms, which are a surface process? The seminar will focus on how to perform the most common method translations using porous polymers and alumina PLOT columns.
