| 摘要 |
PURPOSE:To make it possible to fractionally sample many kinds of particles, by constituting the titled apparatus so that a micronozzle emitting a liquid droplet is used and the falling liquid droplet charged positively or negatively is made to parallel to a deflecting electrode plate before deflected by said deflecting electrode plate. CONSTITUTION:Positive or negative charge is applied to a liquid droplet containing a particle to be contrived in accordance with the output of an optical detection system by an electrode and no charge is applied to the other liquid droplet. Thus falling liquid droplet 22 is collected in a drain container 8 or the container positioned at the center of recovery container groups 9A, 9B along a falling track (b) by the presence and polarity of the charge of said droplet in the OFF-state of micronozzles 6A, 6B. Further, by turning the nozzle 1A ON with respect to the charged liquid droplet, the falling track parallelly moves to a (c)-position and the liquid droplet is collected in either one of containers positioned behind the recovery container groups. Furthermore, by turning the nozzle 6B ON, the falling track parallelly moved to an (a)-position and collected in either one of containers positioned foremost. The falling track of the liquid droplet from each of the nozzles 6A, 6B is deflected in parallel to deflecting electrode plates 7A, 7B.
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