Table of Contents
Separations, Volume 7, Issue 1 (March 2020) – 19 articles
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Cover Story (view full-size image) Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC–TOFMS) [...] Read more. Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC–TOFMS) overcomes the limitations of conventional GC/MS by using two different separation mechanisms in a single run. Cryogenic-based thermal modulators are typically used in GC×GC; however, some platforms require expensive consumables. The solid-state modulator (SSM), a cryogen-free thermal platform, was employed for the first time for group and biomarker analysis of Alberta oil sand bitumen. The goal of the research was to assess the capabilities of the SSM in the analysis of complex samples. The results indicate that consumable-free, solid-state modulation-based GC×GC–TOFMS is a viable option for the analysis of bitumen. View this paper.