Sample cleaning system based on PH determination

The invention relates to a sample cleaning system based on PH determination. The sample cleaning system comprises a sample fixed dish, a cleaning liquid pool, a liquid return pool, and a pH measuringinstrument; the cleaning liquid pool is arranged over the sample fixed dish, the liquid return pool is arranged below the sample fixed dish, sampling apparatuses are arranged at the cleaning liquid pool and the liquid return pool, the sampling apparatus and the pH measuring instrument are connected, an acid solution burette and an alkali lye burette are arranged over the cleaning liquid pool, adjusting solenoid valves are arranged at the acid solution burette and the alkali lye burette, and a control end of each adjusting solenoid valve is connected with the pH measuring instrument. The samplecleaning system has the advantages of controllable pH value of a cleaning solution and constant pH value at the sample surface. 种基于PH测定的样品清洗系统，包括样品固定皿、清洗液池、回液池、PH测量仪；所述的清洗液池设置在所述样品固定皿上方，所述的回液池设置于所述样品固定皿下方，所述的清洗液池与所述的回液池上均设置有采