硅胶管吸附气相色谱法测定气体中的乙酸、丙酸  

Determination of Acetic Acid and Propionic Acid in the Gas by GC Combined with Adsorption by Silicon Tube

作　　者：陆梅[1] 邓爱萍[2] 

机构地区：[1]淮安市环境监测中心站,江苏淮安223001 [2]江苏省环境监测中心,江苏南京210036

出　　处：《环境监控与预警》2012年第6期32-34,共3页Environmental Monitoring and Forewarning

基　　金：江苏省科研基金项目(201122)

摘　　要：建立了用GC-FID同时测定空气中乙酸、丙酸的方法。乙酸、丙酸经硅胶管吸附后,用丙酮溶剂解吸,气相色谱分析。优化条件下,在20～2000mg/L范围内有良好的线性关系。方法检出限分别达到了1.0mg/m3和0.5mg/m3,相对标准偏差2.2%和1.9%,回收率在94%以上。A method for the analysis of acetic acid and propionie acid in tile gas by GC-FID was set up. Acetic acid and propionic acid in the gas was adsorbed by silicon tube,desorbed by acetone and then determined by GC. The ealibration at the eoncentration range 20 ～ 2 000 mg/L was linear by the optimized method. The detection limit was 1.0 mg/m^3 and 0.5 mg/m^3. The relative slandard derivations was 2.2% and 1.9% ,and Ihe recovery was higher than 94%.

关 键 词：乙酸 丙酸 硅胶管 气相色谱 

分 类 号：X831[环境科学与工程—环境工程]