Analysis of advanced materials by FD/FI using “AccuTOF™ GC” [4]：analysis of NIR-photosensitive dyes [GC-TOFMS Application]
MS Tips No.092 We acknowledge the generous offer of the samples by Fine Chemicals Group, Specialty Chemicals Department, Chemicals Division, SHOWA DENKO K.K.
Field desorption (FD) is an ionization method utilizing electron tunneling effect in a high electric field near the emitter surface or whisker tip. Sample is applied on the emitter and heated by applying an electric current through the emitter for desorption and ionization. FD has been used to analyze nonvolatile compounds, polymers, etc. as soft ionization method, which yields intact molecular ions with very few fragment ions in most cases. We have analyzed near infrared ray (NIR) photosensitive dyes that are designed as photoinitiators for the polymerization of functional polymers by FD.
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