Research Article

Headspace Solid-Phase Microextraction Coupled to Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry for the Determination of Short-Chain Chlorinated Paraffins in Water Samples

Figure 4

(a) GC × GC-TOF-MS chromatogram and elution pattern of a mixed SCCPs standard solution (C10–13, 55.5% chlorine) obtained on Rxi-5Sil MS × Rxi-17Sil MS column combination. Lower right: 3D contour plot. (b) Mass spectrum of a selected SCCP congener C10H17Cl5, where the fragment ion m/z 91 is the quantitative ion.