Efficient Coupling of Structures for Lossless Ion Manipulations with Ion Trap Mass Analyzers Using Phase Modulation

Area of Science:

• Analytical Chemistry
• Physical Chemistry

Background:

• Traditional ion manipulation methods for mass spectrometry can be time-consuming.
• Coupling ion trap mass analyzers with other systems often requires complex interfaces.

Purpose of the Study:

• To introduce a novel phased structure system for lossless ion manipulation (SLIM).
• To demonstrate the efficiency and applicability of SLIM when coupled with ion trap mass analyzers.

Main Methods:

• Developed a SLIM system utilizing phased structures for ion manipulation.
• Integrated the SLIM system with an ion trap mass analyzer via a PCB stacked ring ion guide.
• Employed discrete injection pulses and algebraic equation solving to reconstruct arrival time distributions.

Main Results:

• Achieved experimental run times under 1 minute and average run times under 4 minutes.
• Significantly reduced experimental time and enhanced the temporal duty cycle.
• Successfully resolved gas-phase conformers of small peptides and proteins using the 3.4-m SLIM system.
• Demonstrated direct implementation between SLIM and ion trap mass analyzers, compatible with front separation systems like LC.

Conclusions:

• Phased structures for lossless ion manipulation offer a significant improvement over existing methods.
• The SLIM system provides a faster, more efficient approach for ion manipulation and analysis.
• This methodology facilitates direct coupling of SLIM with ion trap mass analyzers, expanding analytical capabilities.