摘要
建立了顶空气相色谱法同时测定甲烷、乙烷、乙烯、丙烯、一氟甲烷、三氟甲烷、二甲醚、甲醇等8种挥发性有机化合物含量的方法。样品以水作为溶剂稀释,在85℃条件下加热45 min,使气液达到平衡,采用HP-POLT Q柱分离,氢火焰离子检测器(FID)检测,外标法定量。8种有机化合物在规定范围内线性良好,回收率在94.0%~118.0%之间。
The method was developed for simultaneous determination of 8 volatile organic compounds(VOC) in hydrofluoric acid wastewaterby headspace gas chromatography. 8 kinds of VOCs were methane,ethane,ethylene,propylene,fluoromethane,trifluoromethane,dimethyl ether and methanol.The sample was diluted by water and was heated at 85℃ for 45 minutes in order to reach the vaporliquid equilibrium state. The method was carried out on the HP-POLT Q capillary column and used the hydrogen flame ionization detector(FID). At the same time,the method was quantified by the external standard method. 8 organic compounds were in good linearity within the specified concentration range.The detection limit of the method met the application requirements and the recovery was within94. 0 %-118. 0%.
作者
杨先武
陈先进
李杰
侯昭胤
YANG Xian-wu;CHEN Xian-jin;LI Jie;HOU Zhao-yin(The Department of Chemistry,Zhejiang University,Hangzhou 310027;Engineering Technology Center,Zhejiang Research Institute of Chemical Industry,Hangzhou 310023,)
出处
《分析试验室》
CAS
CSCD
北大核心
2018年第8期968-972,共5页
Chinese Journal of Analysis Laboratory
关键词
顶空气相色谱法
挥发性有机化合物
氢氟酸废水
Iteadspace gas chromatography
Volatile organic compounds
Hydrofluoric acid wastewater