摘要
建立了一种固相微萃取气相色谱同时测定环保水性涂料中的苯系物和卤代烃的方法。选择涂层厚度为70μm的聚乙二醇二乙烯苯(CW DVB)萃取纤维,对固相微萃取的萃取条件进行了优化。该法相对标准偏差小于10%,样品的加标回收率大于72.2%,已成功地测定了11种水性涂料中的苯系物和卤代烷。
A sensitive method was developed by solid phase micro-extraction coupling gas chromatography for fast determination of trace volatile organic compounds including dichloromethane, 1,1-dichloethane, 1,2-dichoroethane, 1,1,1-trichloromethane, 1,1,2-trchloromethane, benzene, toluene, ethyl benzene, xylene in water soluble coating samples. The analyses were separated with an Agilent-6890 gas chromatograph by a suitable temperature program and were detected by flame ionization detector (FID). During the analysis procedure, a 70 μm CW-DVB fiber was used to extract volatile components, the extraction time was controlled at room temperature for 30 min and the NaCl content in sample was maintained at 10%. The relative standard deviations (RSD%) were below 10.0%. the spiked recoveries varied from 72.2% to 96.0%. The method had been successfully applied to determine the 9 target compounds in the water-based coatings.
出处
《分析试验室》
CAS
CSCD
北大核心
2005年第5期24-28,共5页
Chinese Journal of Analysis Laboratory
基金
国家重点基础研究专项经费资助(2003CB41501)
国家自然科学基金项目(20405015)
关键词
固相微萃取
气相色谱
水性涂料
苯系物
卤代烷
Solid phase micro-extraction
Volatile organic compounds
Water-based coatings
Gas chromatography-flame ionization detection