The staff of Dalian chemical laboratory have sorted it out. The experimenter belongs to the career establishment. The experimenter completes all the preparations for the experiments in the subject he is in charge of, assists in the experimental process, and arranges them together after the experiment. He implemented the regulations on the storage and use of laboratory facilities and instruments, put an end to illegal operations, conducted irregular inspections on various instruments and equipment in the laboratory, actively maintained routine instruments, and reported lost and damaged equipment in time.