Quantitative analysis of amine-based additives in Zn-Ni plating solution by ultraviolet absorption spectrophotometry

摘要

The present invention relates to a method for quantitatively analyzing an amine-based additive in a Zn-Ni plating solution using an ultraviolet absorption spectrophotometric method, and an object of the present invention is to provide a method for quantitatively analyzing the concentration of an amine-Which is capable of rapidly and accurately measuring the amount of the amine-based additive in the Zn-Ni plating solution by using the method of the present invention.;In order to achieve the above object, in the quantitative analysis of the additive in the Zn-Ni plating solution using the ultraviolet absorption spectrophotometry according to the present invention, only the content of Ni among the elements contained in the Zn-Ni plating solution was analyzed and calculated,₂And the concentration of the amine-based additive in the Zn-Ni plating solution is determined by measuring the absorbance at 222 nm using an ultraviolet absorption spectrophotometer after preparing the solution of the construction material and the calibration curve in accordance with the Ni content of the solution. A method for quantitative analysis of an amine-based additive in a Ni plating solution is provided.