Mass Spectrometric Detection of Alkanes Using NO+ Chemical Ionization in Proton-transfer-reaction Plus Switchable Reagent Ion Mass Spectrometry

摘要

The detection properties of alkanes by proton-transfer-reaction plus switchable reagent ion mass spectrometry (PTR + SRI-MS) were investigated. Alkanes (RH) were commonly detected as R~+ by PTR + SRI-MS using NO~+ as the reagent ion, and detection sensitivities were comparable to those of aromatics observed by H3O~+ ionization. It can be concluded that sensitive online measurement of multiple alkanes is possible by PTR + SRI-MS using NO~+ as the reagent ion.