Accurate detection of the content of trace elements in the human body is the premise and foundation of medical theoretical research and clinical application. Without accurate detection, there is no research and application at all. Although trace element research has been started since the 1970s, it is still an emerging discipline. The means of detecting trace elements are still outdated and outdated. Professionals are required to operate from sampling to pre-test processing to testing until result analysis. The steps are quite complicated, the pollution is serious, and the results are produced for a long time. This is also one of the important reasons why hospitals cannot popularize the detection of trace elements in the human body. With the continuous improvement of medical level, the relationship between trace elements and human health has been fully recognized, and people are more concerned about how to supplement trace elements and how to eliminate harmful elements. Trace elements in the human body is a balancing process, and the lack and excess of trace elements will have adverse effects on the human body. Therefore, how to accurately, quickly and conveniently detect the content of trace elements in the human body has become an urgent issue for medical workers to solve. At present, medical care units at all levels in our country, especially maternal and child health care units, children‘s hospitals, general hospitals, etc., have taken the detection of human elements (lead, zinc, copper, calcium, magnesium, iron, etc.) as a routine item. How to choose a suitable instrument is the primary problem faced by hospital managers in the procurement process. Due to the high sense of responsibility for the health of patients and the self-protection of possible doctor-patient disputes, it is most important to choose an accurate and standardized measuring instrument; secondly, the simplicity of the operation process, the safety and stability of the equipment should be considered; the economic affordability and the degree of influence of the subject should also be considered, so as to meet the requirements of its desire to complete the test accurately, quickly and cheaply; finally, the technological advancement and utilization of the instrument should also be taken into account to ensure ROI. Full text download