The mass of this ion corresponds to the sum of the masses of the most abundant naturally occuring isotopes of the various atoms that make up the molecule (with a correction for the masses of the electron(s) lost or gained). Blackwell Scientific Publications, Oxford (1997).Īn ion formed by the removal from (positive ions) or addition to (negative ions) a molecule of one or more electrons without fragmentation of the molecular structure.
Compendium of Chemical Terminology, 2nd ed. The mass of this ion corresponds to the sum of the masses of the most abundant naturally occurring isotopes of the various atoms that make up the molecule, with a correction for the masses of the electrons lost or gain. Definitive Rules, 1979.Īn ion formed by the removal from (positive ions) or addition to (negative ions) a molecule of one or more electrons without fragmentation of the molecular structure. Compendium of Analytical Nomenclature (the Orange Book).
Jenkins.įrom Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013) DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013. XML on-line corrected version: (2006-) created by M. Blackwell Scientific Publications, Oxford (1997). On-line corrected version: /publications/analytical compendium (2000). Note: Pseudo-molecular ion and quasi-molecular ion are deprecated molecular ion is reserved for the intact ionized molecule with no component added or removed other than electrons.
Ion formed by the removal of one or more electrons from a molecule to form a positive ion or the addition of one or more electrons to a molecule to form a negative ion.
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