摘要:
The present invention relates to a method and to a device for sampling gaseous compounds contained in a gas stream, notably in diluted exhaust gases from an internal-combustion engine. According to the invention, the method consists in providing passage of the gas stream through at least one sampling channel (26, 26a; 80, 80a) containing an adsorbent that traps the polycyclic aromatic hydrocarbons in gaseous form.