Fig. 2.From: Oxidation of carbon compounds by silica-derived oxygen within impact-induced vapor plumesExamples of (a) mass spectrum and (b) time-series data of main products (PE-SiO2 target, O/C = 2). A valve of QMS was opened at ~230 seconds and closed at ~780 seconds. The relative abundances of each chemical species are obtained by sensitivity calibration using standard gases and separating the chemical species on the same mass number (see text).Back to article page