利用气相色谱分析检测5种苯系物方法的建立

Method for Analysing and Measuring BTEX by Gas Chromatographic

利用气相色谱毛细管柱和HP-5检测器等,建立苯、乙苯、邻二甲苯、间二甲苯和对二甲苯等5种苯系物(BTEX)的分析检测方法,验证器精密度和检测稳定性,确定了用Agilent7890B(附FID火焰检测器)检测这5种苯系物的检出限分别是1.68,2.17,2.018,2.02,1.256μg/L,为采用气相色谱法测定空气中苯系物质量浓度奠定了基础.

The method for analysing and measuring the benzene series（BTEX）including benzene,ethylbenzene,o-xylene,m-xylene,and p-xylene is established with gas chromatography,the capillary column and HP-5detector.The precision and stability of the instrument was verified.The minimum detection limit of benzene,ethylbenzene,o-xylene,m-xylene,and p-xylene with Agilent7890B（with FID flame detector）was identified to be 1.68,2.17,2.018,2.021,1.256μg/L respectively,This research establishes a basis for the determination of the BTEX concentration in air by GC.