Chainet, Fabien published the artcileDevelopment of heart-cutting multidimensional gas chromatography coupled to time of flight mass spectrometry for silicon speciation at trace levels in gasoline samples, Application In Synthesis of 597-52-4, the publication is Journal of Chromatography A (2012), 80-86, database is CAplus and MEDLINE.
To improve the understanding of hydrotreatment (HDT) catalyst poisoning by silicon species, these mols. must be characterized in petroleum products using powerful anal. systems. Heart-cutting gas chromatog. coupled to time of flight mass spectrometry (GC-GC/TOFMS) method equipped with a Deans switch (DS) system was developed for the direct characterization of target silicon compounds at trace level (μg/kg) in gasoline samples. This method was performed to identify silicon compounds never characterized before. After the selection of the 2nd dimension column using GC-GC-FID, GC-GC/TOFMS was performed. The calibration curves obtained by the GC-GC/TOFMS method were linear up to 1000 μg kg-1. Limits of detection (LOD) were ranging from 5 to 33 μg/kg in spiked gasoline. The method provided sufficient selectivity and sensitivity to characterize known silicon compounds thanks to their specific ions and their retention times. The anal. of a naphtha sample by GC-GC/TOFMS showed cyclic siloxanes (Dn) as major compounds of PDMS thermal degradation with the occurrence of linear siloxanes, especially hexamethyldisiloxane (L2), which was never characterized in petroleum products but already known as severe poison for catalyst.
Journal of Chromatography A published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C6H16OSi, Application In Synthesis of 597-52-4.
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