On-line analysis system of trace metal ions in electric zinc plating solution using potential difference method

摘要

The present invention relates to an on-line analyzing system for trace metal ions in an electrogalvanizing solution using a potential difference method capable of automatically quantitatively analyzing trace metal ions in an electrogalvanizing solution using a potential difference method,;A circulating supply step of supplying a plating solution of the plating tank 10 to circulate through a pump 11 to a sample collecting container 80 and a circulating supplying step of supplying a sample solution supplied from a sample collecting container 80 through a dosing pump 12 A diluting step of diluting the diluted sample solution in the sample diluting device 20 at a constant rate by the distilled water supplied from the distilled water supply container 70 through the dosing pump 15, A component analyzing step of analyzing one component by a potentiometric analysis method by supplying the solution to a voltage ammeter cell 31 and mixing the solution with a predetermined amount of buffer solution supplied through a metering pump so as to match a component to be analyzed; A washing step of washing the voltage ammeter cell 31 with distilled water supplied from a distilled water supply container 70 when the washing step is completed, A step of repeating, and a step of mixing the trace metal ions Pb²⁺, Cu²⁺, Ni²⁺, Fe²⁺And Fe³⁺The sample dilution device 20 and the voltage ammeter 30 are washed by the distilled water supplied from the distilled water supply container 70 and waiting for the next step.