Apparatus for diluting a solution and method for the same

摘要

An apparatus for diluting a solution comprising a preparation vessel (7) for mixing a solution with a diluent to dilute the solution, a solution supply unit (100), a diluent supply unit (200) and a controller, in which the controller controls the solution supply unit (100) and the diluent supply unit (200) to supply the solution and diluent into the preparation vessel (7) in such quantity that the concentration of the diluted solution is higher than a desired concentration, calculates an additional quantity of the diluent necessary for diluting the solution in the preparation vessel (7) to the desired concentration based on a difference between the concentration of the solution in the preparation vessel and the desired concentration, then controls the diluent supply unit (200) to add the diluent into the preparation vessel (7) in smaller quantity than the calculated additional quantity and repeats the calculation and addition until the solution concentration in the preparation vessel (7) reaches the desired concentration.