Evaporation device, used for evaporating samples, comprises number of vessels open at top and device delivering separate gas streams onto liquid surface in sample vessels

摘要

Evaporation device used for evaporating samples comprises a number of vessels open at the top, and a device delivering separate gas streams onto the liquid surface in the sample vessels and consisting of a plate (16) arranged above the sample vessels (10, 18) which has holes (14) for feeding gas streams into an arrangement corresponding to the positions of the sample vessels. Preferred Features: The plates form the base of a pressure box (12). The sample vessels are arranged in a chamber under reduced pressure and seal the upper side of the chamber.