Concept information
Preferred term
Metals, Rare Earth
Type
-
mesh:Descriptor
Definition
- A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition, they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust.
Narrower concepts
Entry terms
- Rare Earth Metal
- Rare Earth Metals
Allowable Qualifier(s)
- administration & dosage (Qualifier)
- adverse effects (Qualifier)
- agonists (Qualifier)
- analysis (Qualifier)
- antagonists & inhibitors (Qualifier)
- blood (Qualifier)
- cerebrospinal fluid (Qualifier)
- chemical synthesis (Qualifier)
- chemistry (Qualifier)
- classification (Qualifier)
- economics (Qualifier)
- history (Qualifier)
- immunology (Qualifier)
- isolation & purification (Qualifier)
- metabolism (Qualifier)
- pharmacokinetics (Qualifier)
- pharmacology (Qualifier)
- poisoning (Qualifier)
- radiation effects (Qualifier)
- standards (Qualifier)
- supply & distribution (Qualifier)
- therapeutic use (Qualifier)
- toxicity (Qualifier)
- urine (Qualifier)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/JVR-JJ4XH3XX-T
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