摘要
建立了用气相色谱法测定空气和工业废气中四氢呋喃的方法。四氢呋喃活性炭吸附,二硫化碳解吸,DB-200毛细管柱分离,氢火焰离子化检测器检测,时间定性,峰面积定量,其四氢呋喃回收率为95.5%～103.4%,当采样体积为20L时,四氢呋喃最低检出质量浓度为0.006mg/m3。本方法前处理简便,分离度好,分析灵敏度高,满足环境分析要求。
The method is established to detect the tetrahydrofuran （THF） in the industrial exhaust gas by the gas chromatographic method. By which, the THF is adsorbed by the activated carbon, desorbed by the carbon disulfide and separated by the DB -624 capillary column. It is detected by the hydrogen flame ionization detector. The time is qualitative and the peak area is quantified in this method. The THF recovery rate is 95.5% - 103.4%. When the sampling volume is 20L, the minimum detectable concentration of THF is 0. 006mg/m3. This method could meet the demands of environmental analysis, with easy pretreatment, good separation, high analysis sensitivity.
出处
《环境科学导刊》
2013年第3期117-118,共2页
Environmental Science Survey
关键词
四氢呋喃
工业废气
气相色谱法
活性炭
tetrahydrofuran
industrial exhaust gas
gas chromatography
activated carbon
