GC-MS在电子束辐照降解甲苯中的应用  

Application of GC-MS in Degradation of Toluene by Electron Beam Irradiation

作　　者：徐建[1] 褚海林[1] 陈海燕[1] 张晔[1] 杨睿戆[1] 

机构地区：[1]中国工程物理研究院环保中心,四川绵阳621900

出　　处：《化工环保》2007年第2期188-190,共3页Environmental Protection of Chemical Industry

摘　　要：用甲苯作为挥发性有机化合物的代表物质，建立了活性炭吸附-二硫化碳解吸气相色谱-质谱分析方法，对电子束辐照甲苯的静态实验和动态实验进行了定性、定量分析。实验结果表明：电子束辐照能有效地降解甲笨，其降解率随吸收剂量的增加而增大；同时，甲苯降解过程中也会生成部分有毒有害物质。该分析方法的检出限为0．02mg／L，工作曲线的线性范围为10～1000mg／L，相关系数为0．9998，活性炭吸附、解吸甲苯的加标回收率大于90％。Using toluene as a representative matter of VOCS, the method of activated carbon adsorptioncarbon bisulfide desorption- GC-MS analysis was established. It was used in the qualitative and quantitative analysis of toluene in the static and dynamic experiments on toluene degradation by electron beam irradiation. The experimental results indicate that： Toluene can be effectively degraded by electron beam irradiation and its degradation rate increases with the increment of absorbed dose; At the same time, some poisonous and harmful substances may generate in the process of toluene degradation. The detection limit of the method is 0.02 mg/L. The linear range of its working curve is 10 - 1 000 rag/L, and the correlation coefficient is 0. 999 8. The recovery rate of labeled toluene by activated carbon is above 90%.

关 键 词：电子束辐照 气相色谱 质谱 甲苯 废气 分析方法 

分 类 号：X830[环境科学与工程—环境工程]