MeSH Browser

MeSH Heading: Isotopes
Tree Number(s): D01.496
Unique ID: D007554
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D007554
Annotation: for stable isotopes only; general or unspecified; prefer specifics; m for metastable equals RADIOISOTOPES or specific pre-coordinated radioisotope
Scope Note: Atomic species differing in mass number but having the same atomic number. (Grant & Hackh's Chemical Dictionary, 5th ed)
Entry Term(s): Isotope
See Also: Radioisotopes
Public MeSH Note: 74; was see under RADIOISOTOPES 1963-73
Online Note: search RADIOISOTOPES 1966-73
History Note: 74; was see under RADIOISOTOPES 1963-73
Date Established: 1974/01/01
Date of Entry: 1999/01/01
Revision Date: 2020/05/27

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analysis (AN)

antagonists & inhibitors (AI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

economics (EC)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

urine (UR)

Isotopes MeSH Descriptor Data 2025