technique dite de « l'espace de tête »
- Domaine
-
- chimie chromatographie
Terme :
- technique dite de « l'espace de tête » n. f.
Traductions
-
anglais
Auteur : Serré, Robert,Définition
Samples are collected in containers with rubber caps and placed in a thermostatically controlled bath at 80-85 °C for equilibration of partition to occur between the sample and the atmosphere (headspace) in the container; a hypodermic syringe is then inserted through the rubber cap and a sample of the headspace withdrawn for injection on the gas chromatograph.
Termes :
- headspace sampling
- sampling