Patent ID: 8524059

Claim:
A method of adjusting a pH of a solution using a pH adjusting apparatus, the pH adjusting apparatus including an electrolytic chip which receives a solution whose pH is to be adjusted, the method comprising: (a) supplying a solution comprising an ion having a lower or higher standard oxidation potential than water into an anode chamber of the electrolytic chip and supplying a solution comprising an ion having a lower standard reduction potential than water into a cathode chamber of the electrolytic chip; (b) loading the electrolytic chip on an electrolytic chip loading station; (c) inputting electrolysis conditions; and (d) performing electrolysis in the anode chamber and the cathode chamber by passing a current through an anode and a cathode of the electrolytic chip according to the electrolysis conditions so that the solution supplied into the anode chamber or the solution supplied into the cathode chamber is adjusted to have an adjusted pH at a predetermined pH value, the pH adjusting apparatus comprising: the electrolytic chip comprising: an enclosed chamber including the cathode at a side of the chamber and the anode at an opposite side of the chamber, and in which the pH of the solution is adjusted; an ion-exchange material which divides the chamber into the cathode chamber including the cathode and the anode chamber including the anode; and an anode support between the anode and the ion-exchange material; the electrolytic chip loading station which receives the electrolytic chip, an input unit that inputs the electrolysis conditions, a control unit which receives the electrolysis conditions and controls the electrolysis in the electrolytic chip, a current measurement unit which measures the current applied to the electrolytic chip and transmits the measured current to the control unit, wherein the control unit applies a constant current to the chamber of the electrolytic chip based on the current measured by the current measurement unit; and a display unit that displays the electrolysis conditions and a progress of the electrolysis.