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High-throughput miniature cylindrical ion trap array mass spectrometer.

Amy M Tabert1, Jens Griep-Raming, Andrew J Guymon

  • 1Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, USA.

Analytical Chemistry
|November 1, 2003
PubMed
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This study introduces a novel four-channel cylindrical ion trap (CIT) array mass spectrometer for simultaneous, high-throughput sample analysis. This multiplexed instrument demonstrates real-time spectral acquisition, paving the way for advanced applications.

Area of Science:

  • Analytical Chemistry
  • Mass Spectrometry Instrumentation

Background:

  • High-throughput analysis is crucial for fields like proteomics and industrial monitoring.
  • Existing mass spectrometry techniques can be limited by sample throughput.
  • Multiplexing analytical instruments offers a pathway to increased efficiency.

Purpose of the Study:

  • To develop and demonstrate a fully multiplexed cylindrical ion trap (CIT) array mass spectrometer.
  • To enable simultaneous, high-throughput analysis of multiple samples in real time.
  • To validate the trapping of externally generated ions in miniature CITs.

Main Methods:

  • Construction of a four-channel CIT array mass spectrometer with parallel ion sources and detectors.
  • Coupling a multielement external chemical ionization/electron ionization source to the CIT array.

Related Experiment Videos

  • Utilizing a four-channel preamplifier system and LabVIEW software for real-time data acquisition.

    • Main Results:

    • Successful simultaneous spectral recording of four separate samples in real time.
    • Demonstration of externally generated ions being trapped in miniature CIT mass analyzers.
    • Achieved a mass/charge range of m/z 50-500 with a resolution of 1000 at m/z 300.

    Conclusions:

    • The developed four-channel CIT array mass spectrometer enables simultaneous high-throughput analysis.
    • The modular design facilitates scalability for future applications in industrial process monitoring, combinatorial analysis, proteomics, and metabolomics.
    • This represents a significant advancement in multiplexed mass spectrometry instrumentation.