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Analysis of Advanced materials by FD-FI using AccuTOF GC (Part IV)

Introduction

Field desorption (FD) is an ionization method that utilizes electron tunneling in a high electric field near the emitter surface or whisker tip. Sample is applied directly on the emitter, and is then heated by applying an electric current through the emitter for desorption and ionization. FD has been used to analyze nonvolatile compounds, polymers, etc. as a soft ionization method that produces intact molecular ions with very few fragment ions in most cases.

In this work, we used FD to analyze several near infrared (NIR) photosensitive dyes that were designed as photoinitiators for the polymerization of functional polymers.

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