Modified Capillary GCMS System Enabling Dynamic Headspace Sampling with On-Line Cryofocusing and Cold On-Column Injection of Liquid Samples
Modified Capillary GCMS System Enabling Dynamic Headspace Sampling with On-Line Cryofocusing and Cold On-Column Injection of Liquid Samples
- J. High Resolution Chromatography, 20, p.24-28, 1997 .
The paper describes a capillary GC/MS hardware arrangement allowing either: a)on-line injection of sample of gases and vapors coming from dynamic headspace or purge trap samplers and their subsequent cryofocusingkhermal desorption prior to the analytical capillary column (first column); b)direct injection of liquid samples through a cold on-column injector into a second analytical capillary column (mounted in series with the first). Chromatographic profiles of acacia honey aromas provide confirmation of the suitability of this system.
The paper describes a capillary GC/MS hardware arrangement allowing either: a)on-line injection of sample of gases and vapors coming from dynamic headspace or purge trap samplers and their subsequent cryofocusingkhermal desorption prior to the analytical capillary column (first column); b)direct injection of liquid samples through a cold on-column injector into a second analytical capillary column (mounted in series with the first). Chromatographic profiles of acacia honey aromas provide confirmation of the suitability of this system.