| 摘要 |
<p>The device has a flow channel (1) through which exhalation air is guidable. A pressure container (2) has an expansion nozzle (3) attached to the container, where temperature of the air is decreasable to a temperature by expansion of gas or gas mixture in the container for condensing substances to be fractioned in the exhalation air and/or freezing out the substances in form of frozen particles (4) in exhalation air stream. A collecting device (5) is aligned downstream-side to the nozzle and accommodates the fluid and/or frozen particles that are carried along the exhalation air stream. The gas is selected from a group consisting of dry gas i.e. pure gas such as argon, nitrogen, carbon dioxide, hydrocarbon such as propane, butane, pentane or chlorethane. An independent claim is also included for a method for fractioned extraction of a substance of exhalation air.</p> |
