polyatomic ion


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polyatomic ion

[‚päl·ē·ə¦täm·ik ′ī·ən]
(chemistry)
An electrically charged species formed by covalent bonding of atoms of two or more different elements, usually nonmetals, for example, the ammonium ion (NH4+).
References in periodicals archive ?
The determination of Cu is complicated because of polyatomic ion interferences from Na at mass 63 ([sup.
Later two acids introduce polyatomic ions such as ClO+ and SO+.
Careful adjustment of nebulizer gas flow and other instrument operating parameters can also reduce the formation of polyatomic ions.