| A method of headspace gas chromatography/mass spectrometry（HS-GC/MS）was used to determine 8 kinds of benzene hydrocarbons (including benzene, toluene, ethylbenzene, p-xylene, m-xylene, o-xylene, isopropyl benzene, and styrene) in water and wastewater. Analysis processes for optimizing experimental condition were discussed such as chromatographic column polarity, oven temperature, balance time and injection times etc. The good linearity of 8 kinds of benzene hydrocarbons were obtained from 1.00μg/L to 1 000 μg/L, the method detection limits between 0.22 μg/L and 0.38 μg/L, relative standard deviation of duplicates<5.0%, spiked recoveries between 86.0% and 115%. |
