Method for continuously detecting pH value of electroplating solution or conductive roller cleaning solution and content of sulfuric acid and zinc ions

The invention belongs to the technical field of analysis and detection, and discloses a method for continuously detecting the pH value of an electroplating solution or a conductive roller cleaning solution and the content of sulfuric acid and zinc ions. Comprising the following steps: 1) selecting a'pH 'gear in'pH/mV' on a potentiometric titrator, and setting instrument parameters; inserting the electrode into the liquid to be detected, and reading the pH value displayed by the potentiometric titrator; 2) selecting an'mV 'gear in'pH/mV' on the potentiometric titrator, selecting a dynamic pH titration mode, and setting instrument parameters; diluting the to-be-measured solution after the pH value is measured, inserting an electrode into the diluted to-be-measured solution, titrating by adopting a sodium hydroxide standard solution, and ending the titration after two equivalent points appear; and 3) calculating the pH value of the to-be-detected liquid and the content of sulfuric acid and zinc ions through a fo