Gas chromatographic–mass spectrometric analysis of dichlorobenzene isomers in human blood with headspace solid-phase microextraction
Abstract\n\t\t\t\t\n\t\t\t\t\tHeadspace solid-phase microextraction (HS-SPME) was utilized for the determination of three dichlorobenzene isomers (DCBs) in human blood. In the headspace at 30°C, DCBs were absorbed for 15 min by a 100-μm polydimethylsiloxane (PDMS) fiber. They were then analyzed by capillary column gas chromatography–mass spectrometry (GC–MS). By setting the initial column oven temperature at 20°C, the three isomers were resolved at the baseline level. \n\t\t\t\t\t\tp-Xylene-d\n\t\t\t\t\t\t10 was used as the internal standard (I.S.).