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Characterization of Synthetic Polymers via Matrix Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF) Mass Spectrometry
Published on: June 10, 2018
Desorption electrospray ionization and electrosonic spray ionization for solid- and solution-phase analysis of
Marcela Nefliu1, Andre Venter, R Graham Cooks
1Department of Chemistry, Purdue University, West Lafayette, IN 47907-2084, USA.
Chemical Communications (Cambridge, England)
|February 16, 2006
Summary
Two new ionization techniques, desorption electrospray ionization (DESI) and electrosonic spray ionization (ESSI), were used to determine polymer molecular weights in both solid and solution phases.
Area of Science:
- Analytical Chemistry
- Polymer Science
- Mass Spectrometry
Background:
- Characterizing polymer molecular weight is crucial for understanding material properties.
- Traditional methods for analyzing solid-phase polymers can be complex and time-consuming.
Purpose of the Study:
- To evaluate the efficacy of desorption electrospray ionization (DESI) and electrosonic spray ionization (ESSI) for polymer analysis.
- To compare the measurement of average molecular weights and molecular weight distributions for solid-phase and solution-phase polymer samples using these techniques.
Main Methods:
- Utilized desorption electrospray ionization (DESI) for analyzing solid-phase polymer samples.
- Employed electrosonic spray ionization (ESSI) for analyzing solution-phase polymer samples.
- Measured average molecular weights and molecular weight distributions for identical polymer samples in both phases.
Main Results:
- Both DESI and ESSI successfully measured average molecular weights and molecular weight distributions for polymers.
- The study demonstrated the capability of these techniques to analyze polymers directly from the solid phase.
- Comparable results were obtained for solid-phase and solution-phase analyses, validating the methods.
Conclusions:
- DESI and ESSI are effective techniques for determining polymer molecular weights and distributions.
- These methods offer a versatile approach for analyzing polymers in both solid and solution states.
- The direct analysis of solid-phase polymers provides a valuable alternative to traditional solution-based methods.
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