DEVICE FOR SEPARATING AND COLLECTING NANOPARTICLES OBTAINED FROM MATERIALS IN GAS PHASE BY THEIR PARTICLE SIZE TO MEASURE HARMFUL EFFECTS

摘要

PURPOSE: A device for separating and collecting nanoparticles obtained from its precursors in gas phase by their particles size, is provided to measure harmful effects of the small gas phase materials in the air. CONSTITUTION: The device for separating and collecting nanoparticles comprises: a nanoparticle-generating means(10) in which gas phase precursors of air pollutants are nucleated and condensed to particles and the particles are developed to nanosized particles; and a separation means(30) in which nanosized particles are classified by certain size ranges, wherein the separation means comprises pluralities of separation means which are arranged in series starting from a means for separating particles having bigger diameter and comprise a device for measuring harmful effects of the nanoparticles, wherein the separation means may be a differential mobility analyzer or an inertial impactor.