Uncovering trace additives in gasoline

This study demonstrates the use of GC×GC coupled with BenchTOF2™ and Tandem Ionisation® to identify trace additives in gasoline, with time-saving workflows in ChromCompare+ software utilising all of the tandem data in a single workflow to automatically uncover differences between gasoline blends.

Gasoline is a complex mixture, making it difficult to identify trace differences between blends. To tackle this challenge, we employ comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC–TOF MS) for improved separation and detection of trace additives.

Moreover, the BenchTOF2-TI™ mass spectrometer used in this study incorporates innovative Tandem Ionisation technology for simultaneous acquisition of hard (70 eV) and soft (10–20 eV) electron ionisation (EI) spectra. The complementary nature of hard and soft EI spectra has been shown to improve chemical selectivity when identifying trace additives in complex mixtures such as petrochemicals.

 

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