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Cited by 345

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Three-Dimensional Ion Mobility/TOFMS Analysis of Electrosprayed Biomolecules

Hoaglund, Cherokee S., Valentine, Stephen J., Sporleder, C. Ray, Reilly, James P., Clemmer, David E.·1998·Analytical Chemistry

Abstract

An ion mobility/mass spectrometry technique has been developed to record mass-resolved ion mobility distributions for multiple ions simultaneously. The approach involves a new instrument that couples an electrospray ion source to an injected-ion drift tube/time-of-flight mass spectrometer. Individual components in a mixture of ions are separated by mobility differences in a drift tube and subsequently dispersed by mass-to-charge ratios in a time-of-flight instrument. Flight times in the mass spectrometer are much shorter than residence times in the drift tube, making it possible to record mass-resolved ion mobilities for all ions simultaneously. The result is a three-dimensional spectrum that contains collision cross section, mass-to-charge, and ion abundance information. The instrument and data acquisition system are described. Examples of combined ion mobility/time-of-flight data are presented for distributions of electrosprayed bradykinin and ubiquitin ions.

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Crossref · 10.1021/ac980059c

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Metadata

Authors
Hoaglund, C. S., Valentine, S. J., Sporleder, C. R., Reilly, J. P., & Clemmer, D. E.
Venue
Analytical Chemistry
Published
1998-05-05
Volume
70
Issue
11
Pages
2236-2242
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2063715632
Cited by
345
References
1
FWCI
7.89
Type
journal article
Language
en
Open access
closed

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