摘要
用光离子作检测器的便携式气相色谱仪，在现场对空气中苯系物进行定性、定量分析，为解决环境污染提供技术数据。操作方法简单，灵敏度高，重复性好、适用范围广，对空气中苯系物的最低榆出质量分数分别为：苯0．03×10^-6、甲苯0．05×10^-6、乙苯10×10^-6、对二甲苯1×10^-6、邻二甲苯1×10^-6，各组分变异系数均在4．5％-5．8％，方法精密度较好。本方法可用于应急事故中空气中苯系物进行定量。
Portable gas-phase chromatograph of optical ionic detector was used to qualitative and quantitative analysis of the benzene family material content in the air on the spot. This provided technique data for the solving of cnviroment pollution. The operation of the method is easy, the sensitivity is high, the repeatability is good and the scope of application is wide. The benzene family material minimum determination mass fraction in the air is benzene 0.03×10^-6 ,methylbenzene 0.05×10^-6, ethylbenzene 1 ×10^-6 ,p-xylene 1×10^-6 ,o-xylene 1×10^-6. The coefficent of variation of each component is 4.5% -5.8%. The precision of the method is better. The method can be applied to the quantitative of benzene family material in emergency accident.
出处
《聚酯工业》
CAS
2006年第1期42-44,共3页
Polyester Industry
关键词
苯系物
检测
光离子检测器
benzene family material
determination
optical ionic detector
