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Solid phase microextraction with matrix assisted laser desorption/ionization introduction to mass spectrometry and
Hui Tong1, Newman Sze, Bruce Thomson
1Department of Chemistry, University of Waterloo, Ontario, Canada.
The Analyst
|October 12, 2002
Summary
This study demonstrates a novel method combining solid phase microextraction (SPME) with matrix assisted laser desorption/ionization (MALDI) for mass spectrometry. This technique efficiently extracts and analyzes target compounds like nicotine and myoglobin.
Area of Science:
- Analytical Chemistry
- Spectrometry
Background:
- Solid phase microextraction (SPME) is a widely used technique for sample preparation.
- Matrix assisted laser desorption/ionization (MALDI) is a soft ionization technique for mass spectrometry.
- Coupling SPME with MALDI offers potential for enhanced sample analysis.
Purpose of the Study:
- To develop and validate a novel analytical method integrating SPME with MALDI.
- To investigate the extraction and detection of specific analytes using this combined technique.
Main Methods:
- Silanization of an optical fiber tip for analyte extraction.
- Utilizing the optical fiber as a sample support and laser energy transfer medium.
- Atmospheric pressure MALDI coupled with ion mobility spectrometry and quadrupole/time-of-flight mass spectrometry for detection.
Main Results:
- Successful extraction and detection of target compounds including nicotine, myoglobin, enkephalin, and substance P.
- Demonstrated feasibility of the SPME/MALDI interface for mass spectrometry.
- Obtained spectra confirmed the effectiveness of the developed method.
Conclusions:
- The developed SPME with MALDI introduction is a viable technique for mass spectrometry.
- This method offers a sensitive and efficient approach for analyzing various analytes.
- The integrated system shows promise for future applications in chemical and biological analysis.