ultratrace element


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ultratrace element

Any of those elements for which laboratory animals seem to have tiny dietary requirements, typically less than 1 μg/g. Elements in this category include arsenic, boron, bromine, cadmium, chromium, fluorine, lead, lithium, molybdenum, nickel, silicon, tin, and vanadium.
See also: element
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References in periodicals archive ?
Anke, "Essential and toxic effects of macro, trace, and ultratrace elements in the nutrition of man," in Elements and Their Compounds in the Environment, E.
"Part 5: Trace Elements" provides information on chromium, iodine, iron, copper, fluorine, manganese, molybdenum, selenium, zinc and the ultratrace elements of boron and silicon.