Fugitive emissions of benzene series compounds and total hydrocarbons pose irreversible harm to the ecological environment and human health.The rapid and accurate analysis of these compounds has long been a research focus in ambient air monitoring.A quick method for the analysis of total hydrocarbons,methane,benzene,toluene,ethylbenzene,p-xylene,m-xylene,o-xylene,and styrene was developed using a multi-dimensional gas chromatograph with dual FID detectors.The results show that the target components can be accurately analyzed within 12 minutes with a single injection,and the components exhibit good linearity and repeatability across the measurement range.This method demonstrates excellent detection limits,with accuracy ranging from-7.7％to 0.2％.The method can be applied for on-line calibration of analytical instruments in various spatiotemporal scenarios,showing potential application value in field mobile monitoring of ambient air.
万方数据
维普
