Miniaturization of MALDI Mass Spectrometers with the Technological Breakthrough of the Digital Ion Trap: Peptide and Protein Analysis in MS1, MS2, and MS3.
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Abstract
A digital ion trap (DIT) mass spectrometer was developed to extend the mass range in comparison to conventional ion traps. This was achieved by changing the RF voltage from a sinusoidal to a rectangular waveform. In addition to the extended mass range, the size of the instrument was miniaturized. To show the benefits of this development, MALDI applications in MS1, MS2, and MS3 are presented: On one hand, it is possible to analyze intact proteins, on the other hand the instrument enables insights into the structure of antibodies and glycoproteins after enzymatic digestion and collision-induced dissociation (CID).
期刊介绍：
CHIMIA, a scientific journal for chemistry in the broadest sense covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.
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