et

molekulaarioon

1

Terminological databases

EKI terminibaas Esterm

ID 714105 Last modified 21.08.2014
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Domain analytical chemistry
  • ioon, mille laeng on 1 ja mass on võrdne uuritava aine molekulmassiga
  • an 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 ;
  • any ion produced, especially in a mass spectrometer, when a molecule loses or gains an electron, forming a molecular cation or molecular anion, respectively
molekulaarioon
molecular ion
Usage examples
  • Full scan: When mass spectrometric determination is performed by the recording of full scan spectra, the presence of all measured diagnostic ions (the molecular ion, characteristic adducts of the molecular ion, characteristic fragment ions and isotope ions) with a relative intensity of more than 10 % in the reference spectrum of the calibration standard is obligatory.
ion moléculaire

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