Tracer
| Also Known As | Radioactive tracer, isotope tracer, radiolabeled compound, labeled compound |
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What is Tracer?
A tracer is a substance (radioactive isotope or stable heavy isotope) used to follow the path of an element or compound through a chemical or biological system. Radioactive tracers are detected by their radiation; stable isotope tracers are detected by mass spectrometry. Tracers are used in medicine (radiotracers for imaging), chemistry (reaction mechanism studies), and industry (leak detection).
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A tracer is a substance (radioactive isotope or stable heavy isotope) used to follow the path of an element or compound through a chemical or biological system. Radioactive tracers are detected by their radiation; stable isotope tracers are detected by mass spectrometry. Tracers are used in medicine (radiotracers for imaging), chemistry (reaction mechanism studies), and industry (leak detection).
Nuclear medicine (PET scans: ¹⁸F-FDG; thyroid scan: ¹³¹I or ¹²³I). Reaction mechanism studies. Metabolic pathway tracing (¹⁴C-labeled compounds). Environmental pollution tracking. Industrial leak detection. Groundwater flow studies. Drug metabolism studies.
Radioactive tracers: ionizing radiation hazards. Proper handling, storage, and disposal required per radioactive material regulations. Personal dosimetry for laboratory workers. Short half-life nuclides reduce waste accumulation. Stable isotope tracers: generally safe, no radiation risk. ¹³¹I therap…