Patent ID: 9678923
Date: 2017-06-13
CPC Classifications: B01L,G01N,G06F

Claim:
1. Apparatus for dispensing a target number of particles from a source of a suspension of said particles into a collection vessel, said apparatus comprising: a particle detecting device that has a detecting area and that detects particles passing through said detecting area; a conveyance device for conveying said suspension from said source through said detecting area and into said collection vessel; a mixing area downstream of said detecting area; a pump for supplying a dilution liquid from a diluent vessel to said mixing area; a controller for automated counting of particles passing through said detecting area and thereby obtaining a cumulative number of particles so detected, for comparing said cumulative number with said target number, and for generating a signal when said cumulative number equals said target number; and a shutoff device for interrupting flow of said suspension into said collection vessel upon receipt of said signal.