Effect of Doubly Charged Ions in Forming the Mass Spectra of Solid-State Substances in a Mass Spectrometer with Inductively Coupled Plasma
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The paper deals with the both theoretical and experimental justifications of the formation of doubly charged ions (M++) of several elements mass spectrometry with inductively coupled plasma (ICP-MS). The efficiency of the formation of both singly and doubly charged ions with the lowest value of the second ionization potential was shown using the Saha equation and thermodynamic modeling. The results of theoretical and experimental studies performed with by ICP-MS are compared. The accuracy of the calculated results is proved, and the possibility of their use for predicting the efficiency in forming M++ in ICP-MS was demonstrated.
Keywordsmass spectrometry with inductively coupled plasma doubly charged ions ionization efficiency thermodynamic modeling secondary ionization argon plasma second ionization potential of atoms of elements
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