Ion emission from 1-10 MDa salt clusters: individual charge state resolution with charge detection mass spectrometry.

ABSTRACT: Salt cluster ions produced by electrospray ionization are used for mass calibration and fundamental investigations into cluster stability and charge separation processes. However, previous studies have been limited to relatively small clusters owing to the heterogeneity associated with large, multiply-charged clusters that leads to unresolved signals in conventional m/z spectra. Here, charge detection mass spectrometry is used to measure both the mass and charge distributions of positively charged clusters of KCl, CaCl₂, and LaCl₃ with masses between ∼1 and 10 MDa by dynamically measuring the energy per charge, m/z, charge, and mass of simultaneously trapped individual ions throughout a 1 s trapping time. The extent of remaining hydration o

SUBMITTER: McPartlan MS 

PROVIDER: S-EPMC12810716 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature