Method for jointly measuring phosphorus in soil by high-pressure digestion and inductively coupled plasma spectrometer

The invention provides a method for jointly measuring phosphorus in soil through high-voltage digestion and an inductively coupled plasma spectrometer, and relates to the technical field of environmental monitoring. According to the method, the high-pressure digestion and the inductively coupled plasma spectrometer are combined to determine the content of phosphorus in the soil. According to the invention, the digestion process is carried out in a pressure cooker, the high-pressure digestion has the advantages of high digestion speed, controllable reaction temperature and reaction time, no need of personnel on duty, low operation difficulty and difficulty in phosphorus loss under closed conditions, and the accuracy of a measurement result is improved while the operation is simple and convenient; the digestion process is carried out in a closed container, so that toxic and harmful substances cannot be released due to the reaction between the soil and aqua regia, and the harm to analystsand the environment can