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Related Experiment Video

Updated: May 9, 2026

T-wave Ion Mobility-mass Spectrometry: Basic Experimental Procedures for Protein Complex Analysis

T-wave Ion Mobility-mass Spectrometry: Basic Experimental Procedures for Protein Complex Analysis

Published on: July 31, 2010

Biomolecular dual-ion-trap mass analyzer.

Yun-Fei Hsu¹, Jung-Lee Lin, Ming-Lee Chu

¹The Genomics Research Center, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan.

|July 9, 2013

Summary

This summary is machine-generated.

Researchers created a novel dual-ion-trap mass analyzer capable of detecting high-mass biomolecules. This system achieves unprecedented ~60% ion transfer efficiency, significantly advancing mass spectrometry capabilities for complex samples.

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Published on: October 15, 2018

Area of Science:

Analytical Chemistry
Mass Spectrometry
Biomolecular Analysis

Background:

Detecting large biomolecules with high mass-to-charge ratios (m/z) presents significant analytical challenges.
Existing dual ion trap systems often suffer from low ion transfer efficiency, limiting comprehensive analysis.
Advancements in mass spectrometry are crucial for understanding complex biological systems.

Purpose of the Study:

To develop and characterize the first dual-ion-trap mass analyzer for high-mass ion detection (m/z > 6000).
To improve ion transfer efficiency between tandem ion traps for comprehensive analysis of biomolecular mixtures.
To enable detailed examination of individual ions from complex samples.

Main Methods:

A quadrupole ion trap (QIT) was employed for initial ion trapping and selection using step scanning of trapping frequency.
A linear ion trap (LIT) was utilized as a second stage to capture ions sequentially ejected from the QIT.
The system was tested with samples containing mixtures of biomolecules to assess performance for high-mass ions.

Main Results:

The developed dual-ion-trap system successfully detected ions with high mass-to-charge ratios (m/z > 6000).
An ion transfer efficiency of approximately 60% was achieved from the QIT to the LIT for large biomolecular ions.
This represents the highest reported transfer efficiency for high-mass ions in a dual ion trap configuration.

Conclusions:

The novel dual-ion-trap mass analyzer offers a significant advancement for analyzing complex biomolecular samples.
The achieved high ion transfer efficiency enables more thorough characterization of high-mass ions.
This technology has the potential to enhance proteomic and other biomolecular research fields.