Multi-capillary-column proton-transfer-reaction time-of-flight mass spectrometry☆

Highlights • The coupling of PTR-TOFMS to a fast GC system using a multi-capillary column was successfully implemented.• The built set-up enables the separation of structural isomers within seconds and does not hamper the normal operation of the PTR-TOFMS.• The MCC setup is suitable to be installed inside the instrument and the overall retention time for a complete spectrum is only a few minutes.• Besides, MCC-PTR-TOF allows a more accurate identification of compounds in complex mixtures.

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