Analysis method for measuring rubidium content in metal rubidium

The invention discloses an analysis method for measuring the content of rubidium in metal rubidium, which specifically comprises the following steps: sampling in a glove box in an inert gas environment, exposing the sample in the air for natural oxidation, absorbing moisture in the air for slow dissolution reaction, adding acid for dissolution after the reaction is sufficient, and measuring the content of rubidium in the metal rubidium. And finally, determining the mass concentrations of the eight impurities including lithium, sodium, potassium, calcium, magnesium, iron, aluminum and lead by using inductively coupled plasma emission spectrometry, determining the mass concentration of cesium in the solution by using inductively coupled plasma mass spectrometry, calculating the content of impurity elements, and then calculating the content of rubidium by using an impurity reduction method. The method is simple and rapid, mild in reaction, low in detection limit, high in sensitivity, good in precision and high i