Quantitative detection method for chromium content of copper foil

The invention relates to a copper foil chromium element content quantitative detection method. The method comprises the steps of 1) cutting a copper foil sample A into small blocks, weighing the copper foil sample A, placing into a beaker B, and adding high concentration hydrochloric acid B1; 2) adding a hydrogen peroxide solution B2 into the beaker B, shaking the beaker B, and after the copper foil sample A is completely dissolved, fixing the volume by using a volumetric flask; 3) making a chromium element standard curve by using an inductively coupled plasma emission instrument, and determining the chromium element content according to the chromium element standard curve. According to the method, the concentrated acid and the strong oxidant are added into the copper foil to completely dissolve the copper foil, so that the problems of long consumed time, incomplete dissolution, influence on a test result due to introduction of other impurities and the like during pretreatment of the copper foil are solved, a