Radioactive Tracers

**Definition:** Radioactive substances added in minute amounts to the reacting elements or compounds in a chemical process and traced through the process by appropriate detection methods, e.g., Geiger counter. Compounds containing tracers are often said to be tagged or labeled. (Hawley's Condensed Chemical Dictionary, 12th ed)

**Tree numbers:** - D01.496.749.731 - D27.720.470.410.614

**Synonyms:** - Radionuclide Tracer - Radioactive Tracer - Radionuclide Tracers