Modified capillary GC/MS system enabling dynamic headspace sampling with on-line cryofocusing and cold on-column injection of liquid samples |
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Authors: | Robertiono Barcatolo Pierino Casson |
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Abstract: | The paper describes a capillary GC/MS hardware arrangement allowong either: - (a) on-line injection of sample of gases and vapors coming from dynamic headspace or purg & trap samplers and their subsequent cryofocusing/thermal 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 column (counted in series with the first).
Chromatographic profiles of acacia honey aromas provide condirmation of the suitability of this system. |
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Keywords: | GC-MS Headspace sampling On-column injection No column replacing Reversed carrier gas flow Honey aroma compounds |
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