UniChromCD for Demultiplexing Time-Resolved Charge Detection-Mass Spectrometry Data

Area of Science:

• Analytical Chemistry
• Mass Spectrometry

Background:

• Charge detection mass spectrometry (CD-MS) is crucial for analyzing large, heterogeneous molecules by examining individual ion signals.
• Traditional CD-MS requires extensive scan acquisition, leading to lengthy analysis times.
• This slow speed hinders coupling CD-MS with time-resolved techniques like chromatography and ion mobility.

Purpose of the Study:

• To address the limitations of slow acquisition speeds in CD-MS.
• To develop a computational tool for processing multiplexed CD-MS data.
• To integrate advanced demultiplexing algorithms into existing CD-MS software.

Main Methods:

• Development of the UniChromCD module within the open-source UniDec package.
• Implementation of time-domain data processing for CD-MS.
• Integration of demultiplexing algorithms for Hadamard and Fourier transforms.
• Demonstration using Hadamard-transform size-exclusion chromatography and Fourier-transform ion mobility workflows.

Main Results:

• UniChromCD successfully processes time-resolved CD-MS data from multiplexed experiments.
• The module facilitates the analysis of data acquired using Hadamard and Fourier transform multiplexing.
• Demonstrated improved data acquisition and analysis for coupled separation techniques.
• Provides a user-friendly interface for visualization and interpretation.

Conclusions:

• UniChromCD significantly enhances the capabilities of CD-MS by enabling efficient processing of multiplexed data.
• The software facilitates the integration of CD-MS with time-dispersive separation techniques.
• This advancement allows for more comprehensive characterization of complex biological and chemical samples.