1. Application in life sciences

The application of isotope tracing methods allows people to dynamically observe the physiological and biochemical processes in living organisms or cells at the molecular level, and understand the material basis of life activities. For example, using 14C, 18O isotopes to study photosynthesis can clarify chlorophyll in detail How to use carbon dioxide and water, what are the intermediates that form large molecules such as sugars from these simple molecules, and the conditions that affect each step of the biosynthesis reaction, etc. Another example is the use of 14C, 3H, 32P equivalent isotopes to interact with nucleic acids and proteins. The study of relationships not only understands the complex process of generating nucleic acids and proteins in the organism, it can even understand how biological inheritance is achieved, and even explore the possibility of artificially modifying genetic characteristics, which has led to new disciplines such as molecular genetics and genetic engineering ( (See Application of Isotope Tracer in Life Science).

2. In terms of industry

In industrial production, the tracer atom provides the possibility to use a variety of high-performance inspection methods and automatic control of the production process, and solves many technical and theoretical problems. Several main applications are listed below.

3. Application in Medicine

In medicine, isotopic tracing is mainly used to diagnose diseases. For example, the principle of diluting isotope tracers is used to determine water volume and blood volume; the tracer movement and its velocity are used to determine blood flow, renal function, heart function, and thrombus Formation, gastrointestinal blood loss,use of tissues and organs to take up tracers to check thyroid function and find tumors; use of tracers in tissues and organs to obtain organ images, placenta location; use tracers with the corresponding test substance The principle of competition and binding of a reagent or the principle that elements in the body are activated by particles, photons, etc. determine the trace components in the body or in blood, urine and other specimens, use the tracer to be metabolized in the body to measure the degree or speed of gastrointestinal absorption and liver function Erythrocyte generation and its life span.