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Updated: May 7, 2026
05:48
Analysis of Volatile and Oxidation Sensitive Compounds Using a Cold Inlet System and Electron Impact Mass Spectrometry
Published on: September 5, 2014
High-throughput solvent assisted ionization inlet for use in mass spectrometry
1Department of Chemistry, Wayne State University , 5101 Cass Avenue, Detroit, Michigan 48202, United States.
Analytical Chemistry
|October 8, 2013
Summary
A new multiplexed analysis platform offers rapid, high-throughput solution characterization using solvent assisted ionization inlet mass spectrometry (SAII-MS). This automated method analyzes samples in seconds, enabling diverse applications from small molecules to large proteins.
Area of Science:
- Analytical Chemistry
- Biochemistry
- Chemical Engineering
Background:
- High-throughput analysis is crucial for modern scientific research.
- Existing methods for solution characterization can be time-consuming and labor-intensive.
- Direct injection mass spectrometry offers potential for rapid analysis but requires efficient sample handling.
Purpose of the Study:
- To develop a novel multiplexed analysis platform for rapid solution characterization.
- To demonstrate the high-throughput capabilities of the developed system.
- To showcase the broad applicability of the method across different molecular sizes.
Main Methods:
- Utilized a multiplexed solvent assisted ionization inlet (SAII) coupled with mass spectrometry (MS).
- Employed an automated x,y-stage to sequentially position pipet tips for direct sample injection.
- Implemented MS/MS fragmentation for enhanced sample characterization and ion intensity mapping for spatial analysis.
Main Results:
- Achieved automated analyses in under 5 seconds per sample without carryover.
- Demonstrated successful characterization of diverse analytes, including small molecules and proteins up to carbonic anhydrase (29,000 MW).
- Successfully mapped component locations and concentrations within microtiter plates using ion intensity maps.
Conclusions:
- The developed SAII-MS platform provides a simple, fast, and high-throughput method for solution analysis.
- The system is easily implemented and shows wide applicability for various sample types.
- This technology enables efficient spatial mapping and concentration determination of components in solution arrays.
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