水中痕量苯酚的微波萃取气相色谱分析  

Determination of trace phenol in water by microwave-assisted extraction and gas chromatography

作　　者：谭晓燕[1] 黎国兰[2] 李松[2] 赵莹[1] 

机构地区：[1]中南林业科技大学应用化学研究所,湖南株洲412006 [2]四川绵阳师范学院化学与化学工程系,四川绵阳621000

出　　处：《化学研究与应用》2009年第7期1067-1069,共3页Chemical Research and Application

基　　金：湖南省科技厅项目(2007FJ4156)

摘　　要：A method of microwave-assisted extraction and gas chromatography for determination of trace phenol in water was established.The conditions of microwave extraction and derivation were optimized.Acetone-cyclohexane(1∶1) mixture was used as extracting agent for water sample containing phenol and acetic anhydride was employed for the direct acetylation of phenol.Petroleum ether was used as the extracting agent to extract the derivative of phenol.Detection was carried out in GC-FID equipped with DB-17(30 m×0.53 mm×1.0 μm) capillary column.The detection limit of the proposed method was found to be 0.01μg.L-1.Recoveries were in the range of 86.8%～99.2% with RSD of 4.2%.This method has proved to be high sensitive,efficient and accurate.A method of microwave-assisted extraction and gas chromatography for determination of trace phenol in water was established. The conditions of microwave extraction and derivation were optimized. Acetone-cyclohexane （ 1 ： 1 ） mixture was used as extracting agent for water sample containing phenol and acetic anhydride was employed for the direct acetylation of phenol. Petroleum ether was used as the extracting agent to extract the derivative of phenol. Detection was carried out in GC - FID equipped with DB-17 （30 m × 0.53 mm × 1.0 μm） capillary column. The detection limit of the proposed method was found to be 0.01 μg. L^-1. Recoveries were in the range of 86.8% -99.2% with RSD of 4.2%. This method has proved to be high sensitive, efficient and accurate.

关 键 词：气相色谱法 微波萃取 苯酚 

分 类 号：O657.71[理学—分析化学]